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Table of Contents

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​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

​

FORM 10-Q

​

| ☒ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

​

For the quarterly period ended: June 30, 2019

​

or

​

| ☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

​

For the transition period from to

​

Commission File Number: 1-14066

​

SOUTHERN COPPER CORPORATION

(Exact name of registrant as specified in its charter)

​

Delaware |  | 13-3849074
(State or other jurisdiction of incorporation or organization) | ​ | (I.R.S. Employer Identification No.)

​

​

1440 East Missouri Avenue Suite 160 Phoenix, AZ | ​ | 85014
(Address of principal executive offices) | ​ | (Zip Code)

​

Registrant’s telephone number, including area code: (602) 264-1375

​

Securities registered pursuant to Section 12(b) of the Act:

​

Title of each class: |  | Trading Symbol |  | Name of each exchange on which registered:
Common stock, par value $0.01 per share | ​ | SCCO | ​ | New York Stock Exchange Lima Stock Exchange

​

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ⌧ No ◻

​

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ⌧ No ◻

​

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

​

​ | Large accelerated filer | ⌧ | ​ | ​ | Accelerated filer | ◻
​ | Non-accelerated filer | ◻ | ​ | ​ | Smaller reporting company | ☐
​ | Emerging growth company | ☐ | ​ | ​ | ​ | ​

​

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

​

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No ⌧

​

As of July 24, 2019 there were outstanding 773,058,869 shares of Southern Copper Corporation common stock, par value $0.01 per share.

​

​

​

Table of Contents

Southern Copper Corporation (“SCC”)

​

INDEX TO FORM 10-Q

​

​ |  | ​ |  |
​ |  | ​ |  | Page No.
Part I. Financial Information: | ​ | ​
​ | ​ | ​ | ​ | ​
Item. 1 | ​ | Condensed Consolidated Financial Statements (Unaudited) | ​ | ​
​ | ​ | ​ | ​ | ​
​ | ​ | Condensed Consolidated Statements of Earnings for the three and six months ended June 30, 2019 and 2018 | ​ | 3
​ | ​ | ​ | ​ | ​
​ | ​ | Condensed Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2019 and 2018 | ​ | 4
​ | ​ | ​ | ​ | ​
​ | ​ | Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018 | ​ | 5
​ | ​ | ​ | ​ | ​
​ | ​ | Condensed Consolidated Statements of Cash Flows for the three and six months ended June 30, 2019 and 2018 | ​ | 6
​ | ​ | ​ | ​ | ​
​ | ​ | Condensed Consolidated Statements of Changes in Equity for the three and six months ended June 30, 2019 and 2018 | ​ | 7
​ | ​ | ​ | ​ | ​
​ | ​ | Notes to Condensed Consolidated Financial Statements | ​ | 8-36
​ | ​ | ​ | ​ | ​
Item 2. | ​ | Management’s Discussion and Analysis of Financial Condition and Results of Operations | ​ | 37-56
​ | ​ | ​ | ​ | ​
Item 3. | ​ | Quantitative and Qualitative Disclosure about Market Risk | ​ | 57-57
​ | ​ | ​ | ​ | ​
Item 4. | ​ | Controls and procedures | ​ | 58
​ | ​ | ​ | ​ | ​
​ | ​ | Report of Independent Registered Public Accounting Firm | ​ | 60
​ | ​ | ​ | ​ | ​
Part II. Other Information: | ​ | ​
​ | ​ | ​ | ​ | ​
Item 1. | ​ | Legal Proceedings | ​ | 61
​ | ​ | ​ | ​ | ​
Item 1A. | ​ | Risk Factors | ​ | 61
​ | ​ | ​ | ​ | ​
Item 2. | ​ | Unregistered Sale of Equity Securities and Use of Proceeds | ​ | 61
​ | ​ | ​ | ​ | ​
Item 4. | ​ | Mine Safety Disclosures | ​ | 61
​ | ​ | ​ | ​ | ​
Item 6. | ​ | Exhibits | ​ | 62-62
​ | ​ | ​ | ​ | ​
​ | ​ | List of Exhibits | ​ | 65-65
​ | ​ | ​ | ​ | ​
​ | ​ | Signatures | ​ | 68

​

​

​

​

2

Table of Contents

PART I — FINANCIAL INFORMATION

​

Item 1. Condensed Consolidated Financial Statements

​

Southern Copper Corporation

​

CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS

(Unaudited)

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended | ​ | Six Months Ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ | ​ | 2019 | ​ | 2018 |  | 2019 |  | 2018 | ​
​ | ​ | (in millions, except for per share amounts) | ​
Net sales (including sales to related parties, see note 7) | ​ | $ | 1,818.0 | ​ | $ | 1,837.2 | ​ | $ | 3,571.4 | ​ | $ | 3,678.4 | ​
Operating cost and expenses: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cost of sales (exclusive of depreciation, amortization and depletion shown separately below) | ​ |  | 867.3 | ​ |  | 851.7 | ​ |  | 1,711.4 | ​ |  | 1,728.2 | ​
Selling, general and administrative | ​ |  | 30.9 | ​ |  | 26.2 | ​ |  | 59.4 | ​ |  | 50.3 | ​
Depreciation, amortization and depletion | ​ |  | 198.8 | ​ |  | 162.6 | ​ |  | 380.4 | ​ |  | 324.6 | ​
Exploration | ​ |  | 7.4 | ​ |  | 9.1 | ​ |  | 12.9 | ​ |  | 14.3 | ​
Total operating costs and expenses | ​ |  | 1,104.4 | ​ |  | 1,049.6 | ​ |  | 2,164.1 | ​ |  | 2,117.4 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating income | ​ |  | 713.6 | ​ |  | 787.6 | ​ |  | 1,407.3 | ​ |  | 1,561.0 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest expense | ​ |  | (90.2) | ​ |  | (90.2) | ​ |  | (180.3) | ​ |  | (180.5) | ​
Capitalized interest | ​ |  | 6.2 | ​ |  | 21.6 | ​ |  | 18.5 | ​ |  | 42.6 | ​
Other income (expense) | ​ |  | 23.0 | ​ |  | (3.1) | ​ |  | 28.3 | ​ |  | (5.5) | ​
Interest income | ​ |  | 4.4 | ​ |  | 2.8 | ​ |  | 8.1 | ​ |  | 5.4 | ​
Income before income taxes | ​ |  | 657.0 | ​ |  | 718.7 | ​ |  | 1,281.9 | ​ |  | 1,423.0 | ​
Income taxes (including royalty taxes, see Note 4) | ​ |  | 251.1 | ​ |  | 309.1 | ​ |  | 489.0 | ​ |  | 545.7 | ​
Net income before equity earnings of affiliate | ​ |  | 405.9 | ​ |  | 409.6 | ​ |  | 792.9 | ​ |  | 877.3 | ​
Equity earnings (loss) of affiliate, net of income tax | ​ |  | (1.5) | ​ |  | 1.5 | ​ |  | 0.7 | ​ |  | 5.6 | ​
Net income | ​ |  | 404.4 | ​ |  | 411.1 | ​ |  | 793.6 | ​ |  | 882.9 | ​
Less: Net income attributable to the non-controlling interest | ​ |  | 2.0 | ​ |  | 1.5 | ​ |  | 3.0 | ​ |  | 2.6 | ​
Net income attributable to SCC | ​ | $ | 402.4 | ​ | $ | 409.6 | ​ | $ | 790.6 | ​ | $ | 880.3 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Per common share amounts attributable to SCC: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net earnings-basic and diluted | ​ | $ | 0.52 | ​ | $ | 0.53 | ​ | $ | 1.02 | ​ | $ | 1.14 | ​
Dividends declared and paid | ​ | $ | 0.40 | ​ | $ | 0.30 | ​ | $ | 0.80 | ​ | $ | 0.60 | ​
Weighted average shares outstanding-basic and diluted | ​ |  | 773.0 | ​ |  | 773.0 | ​ |  | 773.0 | ​ |  | 773.0 | ​

​

The accompanying notes are an integral part of these condensed consolidated financial statements.

​

​

3

Table of Contents

Southern Copper Corporation

​

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended | ​ | Six Months Ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2019 |  | 2018 |  | 2019 |  | 2018 | ​
​ | ​ | (in millions) | ​
Net income and comprehensive income | ​ | $ | 404.4 | ​ | $ | 411.1 | ​ | $ | 793.6 | ​ | $ | 882.9 | ​
Comprehensive income attributable to the non-controlling interest | ​ |  | 2.0 | ​ | ​ | 1.5 | ​ |  | 3.0 | ​ |  | 2.6 | ​
Comprehensive income attributable to SCC | ​ | $ | 402.4 | ​ | $ | 409.6 | ​ | $ | 790.6 | ​ | $ | 880.3 | ​

​

The accompanying notes are an integral part of these condensed consolidated financial statements.

​

​

4

Table of Contents

Southern Copper Corporation

​

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
​ |  | 2019 |  | 2018
​ | ​ | (in millions)
ASSETS | ​ | ​ | ​ | ​ | ​ | ​
Current assets: | ​ | ​ | ​ | ​ | ​ | ​
Cash and cash equivalents | ​ | $ | 752.2 | ​ | $ | 844.6
Short-term investments | ​ |  | 118.8 | ​ |  | 213.8
Accounts receivable trade | ​ |  | 787.1 | ​ |  | 822.4
Accounts receivable other (including related parties 2019- $91.0 and 2018 - $101.5) | ​ |  | 148.6 | ​ |  | 150.2
Inventories | ​ |  | 1,068.6 | ​ |  | 1,032.7
Prepaid taxes | ​ | ​ | 195.0 | ​ | ​ | 87.0
Other current assets | ​ |  | 27.8 | ​ |  | 29.3
Total current assets | ​ |  | 3,098.1 | ​ |  | 3,180.0
​ | ​ | ​ | ​ | ​ | ​ | ​
Property and mine development, net | ​ |  | 9,414.6 | ​ |  | 9,403.8
Ore stockpiles on leach pads | ​ |  | 1,205.8 | ​ |  | 1,177.4
Intangible assets, net | ​ |  | 148.2 | ​ |  | 147.7
Right-of-use assets | ​ |  | 1,076.3 | ​ |  | —
Deferred income tax | ​ |  | 208.5 | ​ |  | 400.9
Equity method investment | ​ |  | 103.0 | ​ |  | 103.6
Other non-current assets | ​ |  | 90.1 | ​ |  | 71.4
Total assets | ​ | $ | 15,344.6 | ​ | $ | 14,484.8
​ | ​ | ​ | ​ | ​ | ​ | ​
LIABILITIES | ​ | ​ | ​ | ​ | ​ | ​
Current liabilities: | ​ | ​ | ​ | ​ | ​ | ​
Current portion of long-term debt | ​ | $ | 399.6 | ​ | $ | —
Accounts payable (including related parties 2019- $66.7 and 2018- $75.3) | ​ | ​ | 630.8 | ​ | ​ | 673.4
Accrued income taxes | ​ |  | 72.5 | ​ |  | 232.8
Accrued workers’ participation | ​ |  | 98.6 | ​ |  | 206.7
Accrued interest | ​ |  | 83.9 | ​ |  | 83.9
Lease liabilities current | ​ | ​ | 64.5 | ​ | ​ | —
Other accrued liabilities | ​ |  | 35.5 | ​ |  | 19.5
Total current liabilities | ​ |  | 1,385.4 | ​ |  | 1,216.3
Long-term debt | ​ |  | 5,562.1 | ​ |  | 5,960.1
Lease liabilities | ​ | ​ | 1,011.8 | ​ | ​ | —
Deferred income taxes | ​ |  | 210.0 | ​ |  | 202.6
Non-current taxes payable | ​ | ​ | 62.7 | ​ | ​ | 207.1
Other liabilities and reserves | ​ |  | 75.3 | ​ |  | 68.2
Asset retirement obligation | ​ |  | 248.7 | ​ |  | 217.7
Total non-current liabilities | ​ |  | 7,170.6 | ​ |  | 6,655.7
​ | ​ | ​ | ​ | ​ | ​ | ​
Commitments and contingencies (Note 9) | ​ | ​ | ​ | ​ | ​ | ​
STOCKHOLDERS’ EQUITY (NOTE 11) | ​ | ​ | ​ | ​ | ​ | ​
Common stock par value $0.01; shares authorized, 2019 and 2018–2,000; shares issued, 2019 and 2018–884.6 | ​ |  | 8.8 | ​ |  | 8.8
Additional paid-in capital | ​ |  | 3,407.6 | ​ |  | 3,393.7
Retained earnings | ​ |  | 6,358.7 | ​ |  | 6,186.9
Accumulated other comprehensive income | ​ |  | (2.4) | ​ |  | (2.4)
Treasury stock, at cost, common shares | ​ |  | (3,032.4) | ​ |  | (3,019.6)
Total Southern Copper Corporation stockholders’ equity | ​ |  | 6,740.3 | ​ |  | 6,567.4
Non-controlling interest | ​ |  | 48.3 | ​ |  | 45.4
Total equity | ​ |  | 6,788.6 | ​ |  | 6,612.8
Total liabilities and equity | ​ | $ | 15,344.6 | ​ | $ | 14,484.8

​

The accompanying notes are an integral part of these condensed consolidated financial statements.

​

​

5

Table of Contents

Southern Copper Corporation

​

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  | Six Months Ended |
​ | ​ | June 30, | ​ | June 30, | ​
​ | ​ | 2019 | ​ | 2018 | ​ | 2019 | ​ | 2018 | ​
​ | ​ | (in millions) | ​
OPERATING ACTIVITIES | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income | ​ | $ | 404.4 | ​ | $ | 411.1 | ​ | $ | 793.6 | ​ | $ | 882.9 | ​
Adjustments to reconcile net earnings to net cash provided from operating activities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Depreciation, amortization and depletion | ​ |  | 198.8 | ​ |  | 162.6 | ​ |  | 380.4 | ​ |  | 324.6 | ​
Equity earnings of affiliate, net of dividends received | ​ |  | 1.8 | ​ |  | (0.2) | ​ |  | 0.6 | ​ |  | (0.5) | ​
Loss on foreign currency transaction effect | ​ |  | 7.1 | ​ |  | — | ​ |  | 9.4 | ​ |  | 26.4 | ​
Provision (benefit) for deferred income taxes | ​ |  | 11.4 | ​ |  | 8.4 | ​ |  | 50.2 | ​ |  | (15.5) | ​
Other, net | ​ |  | 3.8 | ​ |  | (6.7) | ​ |  | 7.4 | ​ |  | (7.9) | ​
Change in operating assets and liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Decrease in accounts receivable | ​ |  | 89.5 | ​ |  | 60.7 | ​ |  | 35.3 | ​ |  | 77.5 | ​
(Increase) in inventories | ​ |  | (56.8) | ​ |  | (28.3) | ​ |  | (64.2) | ​ |  | (87.6) | ​
(Decrease) in accounts payable and accrued liabilities | ​ |  | (195.7) | ​ |  | (178.0) | ​ |  | (328.6) | ​ |  | (94.6) | ​
(Increase) in other operating assets and liabilities | ​ |  | (50.2) | ​ |  | (23.4) | ​ |  | (98.8) | ​ |  | (49.2) | ​
Net cash provided by operating activities | ​ |  | 414.1 | ​ |  | 406.2 | ​ |  | 785.3 | ​ |  | 1,056.1 | ​
INVESTING ACTIVITIES | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Capital expenditures | ​ |  | (180.4) | ​ |  | (253.9) | ​ |  | (353.5) | ​ |  | (549.6) | ​
Proceeds from sale (purchase) of short-term investments, net | ​ |  | 94.7 | ​ |  | 5.8 | ​ |  | 95.0 | ​ |  | (0.2) | ​
Other | ​ |  | 0.1 | ​ | ​ | (12.4) | ​ |  | 0.1 | ​ | ​ | (12.1) | ​
Net cash used in investing activities | ​ |  | (85.6) | ​ |  | (260.5) | ​ |  | (258.4) | ​ |  | (561.9) | ​
FINANCING ACTIVITIES | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash dividends paid to common stockholders | ​ |  | (309.3) | ​ |  | (231.9) | ​ |  | (618.5) | ​ |  | (463.8) | ​
SCC shareholder derivative lawsuit — received from AMC | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 36.5 | ​ | ​ | — | ​
SCC shareholder derivative lawsuit — dividend paid | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (36.5) | ​ | ​ | — | ​
Other, net | ​ |  | 0.3 | ​ |  | 0.2 | ​ |  | 0.3 | ​ |  | (0.8) | ​
Net cash used in financing activities | ​ |  | (309.0) | ​ |  | (231.7) | ​ |  | (618.2) | ​ |  | (464.6) | ​
Effect of exchange rate changes on cash and cash equivalents | ​ |  | (4.3) | ​ |  | 50.3 | ​ |  | (1.1) | ​ |  | (1.9) | ​
Increase (decrease) in cash and cash equivalents | ​ |  | 15.2 | ​ |  | (35.7) | ​ |  | (92.4) | ​ |  | 27.7 | ​
Cash and cash equivalents, at beginning of year | ​ |  | 737.0 | ​ |  | 1,068.2 | ​ |  | 844.6 | ​ |  | 1,004.8 | ​
Cash and cash equivalents, at end of year | ​ | $ | 752.2 | ​ | $ | 1,032.5 | ​ | $ | 752.2 | ​ | $ | 1,032.5 | ​

​

The accompanying notes are an integral part of these condensed consolidated financial statements.

​

6

Table of Contents

Southern Copper Corporation

​

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

(Unaudited)

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  | Six Months Ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ | ​ | 2019 | ​ | 2018 | ​ | 2019 | ​ | 2018 | ​
​ | ​ | (in millions) | ​
TOTAL EQUITY, beginning of period | ​ | $ | 6,692.8 | ​ | $ | 6,389.4 | ​ | $ | 6,612.8 | ​ | $ | 6,149.4 | ​
STOCKHOLDERS’ EQUITY, beginning of period | ​ |  | 6,646.5 | ​ |  | 6,346.8 | ​ |  | 6,567.4 | ​ |  | 6,107.7 | ​
CAPITAL STOCK: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at beginning and end of period: | ​ |  | 8.8 | ​ |  | 8.8 | ​ |  | 8.8 | ​ |  | 8.8 | ​
ADDITIONAL PAID-IN CAPITAL: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at beginning of period | ​ |  | 3,400.4 | ​ |  | 3,380.1 | ​ |  | 3,393.7 | ​ |  | 3,373.3 | ​
Other activity of the period | ​ |  | 7.2 | ​ |  | 2.6 | ​ |  | 13.9 | ​ |  | 9.4 | ​
Balance at end of period | ​ |  | 3,407.6 | ​ |  | 3,382.7 | ​ |  | 3,407.6 | ​ |  | 3,382.7 | ​
TREASURY STOCK: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Southern Copper common shares | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at beginning of the period | ​ |  | (2,768.3) | ​ |  | (2,768.7) | ​ |  | (2,768.3) | ​ |  | (2,768.7) | ​
Share repurchase program | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | — | ​
Used for corporate purposes | ​ |  | 0.4 | ​ |  | 0.4 | ​ |  | 0.4 | ​ |  | 0.4 | ​
Balance at end of period | ​ |  | (2,767.9) | ​ |  | (2,768.3) | ​ |  | (2,767.9) | ​ |  | (2,768.3) | ​
Parent Company common shares | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at beginning of period | ​ |  | (257.7) | ​ |  | (238.9) | ​ |  | (251.3) | ​ |  | (232.4) | ​
Other activity, including dividend, interest and foreign currency transaction effect | ​ |  | (6.8) | ​ |  | (1.9) | ​ |  | (13.2) | ​ |  | (8.4) | ​
Balance at end of period | ​ |  | (264.5) | ​ |  | (240.8) | ​ |  | (264.5) | ​ |  | (240.8) | ​
Treasury stock balance at end of period | ​ |  | (3,032.4) | ​ |  | (3,009.1) | ​ |  | (3,032.4) | ​ |  | (3,009.1) | ​
RETAINED EARNINGS: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at beginning of period | ​ |  | 6,265.7 | ​ |  | 5,965.0 | ​ |  | 6,186.9 | ​ |  | 5,726.2 | ​
Net earnings | ​ |  | 402.4 | ​ |  | 409.6 | ​ |  | 790.6 | ​ |  | 880.3 | ​
Dividends declared and paid, common stock, per share, 2019- $0.80, 2018– $0.60 | ​ |  | (309.3) | ​ |  | (231.9) | ​ |  | (618.5) | ​ |  | (463.8) | ​
SCC shareholder derivative lawsuit — received from AMC | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 36.5 | ​ | ​ | — | ​
SCC shareholder derivative lawsuit — dividend paid | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (36.5) | ​ | ​ | — | ​
Other activity of the period | ​ | ​ | (0.1) | ​ | ​ | 0.1 | ​ | ​ | (0.3) | ​ | ​ | 0.1 | ​
Balance at end of period | ​ |  | 6,358.7 | ​ |  | 6,142.8 | ​ |  | 6,358.7 | ​ |  | 6,142.8 | ​
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS): | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at beginning of period | ​ |  | (2.4) | ​ |  | 0.5 | ​ |  | (2.4) | ​ |  | 0.5 | ​
STOCKHOLDERS’ EQUITY, end of period | ​ |  | 6,740.3 | ​ |  | 6,525.7 | ​ |  | 6,740.3 | ​ |  | 6,525.7 | ​
NON-CONTROLLING INTEREST, beginning of period | ​ |  | 46.3 | ​ |  | 42.6 | ​ |  | 45.4 | ​ |  | 41.7 | ​
Net earnings | ​ |  | 2.0 | ​ |  | 1.5 | ​ |  | 3.0 | ​ |  | 2.6 | ​
Distributions paid | ​ |  | — | ​ |  | (0.7) | ​ |  | (0.1) | ​ |  | (0.9) | ​
NON-CONTROLLING INTEREST, end of period | ​ |  | 48.3 | ​ |  | 43.4 | ​ |  | 48.3 | ​ |  | 43.4 | ​
TOTAL EQUITY, end of period | ​ | $ | 6,788.6 | ​ | $ | 6,569.1 | ​ | $ | 6,788.6 | ​ | $ | 6,569.1 | ​

​

The accompanying notes are an integral part of these condensed consolidated financial statements.

​

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Southern Copper Corporation

​

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

​

NOTE 1— DESCRIPTION OF THE BUSINESS:

​

The Company is a majority-owned, indirect subsidiary of Grupo Mexico S.A.B. de C.V. (“Grupo Mexico”). At June 30, 2019, Grupo Mexico through its wholly-owned subsidiary Americas Mining Corporation (“AMC”) owned 88.9% of the Company’s capital stock. The condensed consolidated financial statements presented herein consist of the accounts of Southern Copper Corporation ("SCC" or the “Company”), a Delaware corporation, and its subsidiaries. The Company is an integrated producer of copper and other minerals, and operates mining, smelting and refining facilities in Peru and Mexico. The Company conducts its primary operations in Peru through a registered branch (the "Peruvian Branch" or “Branch” or “SPCC Peru Branch”). The Peruvian Branch is not a corporation separate from the Company. The Company's Mexican operations are conducted through subsidiaries. The Company also conducts exploration activities in Argentina, Chile, Ecuador, Mexico and Peru.

​

In the opinion of the Company, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) necessary to state fairly the Company’s financial position as of June 30, 2019 and the results of operations, comprehensive income, cash flows and changes in equity for the three and six months ended June 30, 2019 and 2018. The results of operations for the three and six months ended June 30, 2019 are not necessarily indicative of the results to be expected for the full year. The December 31, 2018 balance sheet data was derived from audited financial statements, but does not include all disclosures required by generally accepted accounting principles in the United States of America (“GAAP”). The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements at December 31, 2018 and notes included in the Company’s 2018 annual report on Form 10-K.

​

NOTE 2 — SHORT-TERM INVESTMENTS:

​

Short-term investments were as follows ($ in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | At June 30, | ​ | At December 31, | ​ | ​
​ |  | 2019 |  | 2018 | ​ | ​
Trading securities | ​ | $ | 118.0 | ​ | $ | 213.1 | ​ | ​
Weighted average interest rate | ​ |  | 2.4 | % |  | 2.2 | % | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-sale | ​ | $ | 0.8 | ​ | $ | 0.7 | ​ | ​
Weighted average interest rate | ​ |  | 0.7 | % |  | 0.7 | % | ​
Total | ​ | $ | 118.8 | ​ | $ | 213.8 | ​ | ​

​

Trading securities consist of bonds issued by public companies and are publicly traded. Each financial instrument is independent of the others. The Company has the intention to sell these bonds in the short-term.

​

Available-for-sale investments consist of securities issued by public companies. Each security is independent of the others and at June 30, 2019 and December 31, 2018, included corporate bonds and asset and mortgage backed obligations. As of June 30, 2019 and December 31, 2018, gross unrealized gains and losses on available-for-sale securities were not material.

​

Related to these investments the Company earned interest, which was recorded as interest income in the condensed consolidated statement of earnings. Also, the Company redeemed some of these securities and recognized gains (losses) due to changes in fair value, which were recorded as other income (expense) in the condensed consolidated statement of earnings.

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The following table summarizes the activity of these investments by category (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Six months ended | ​ |
​ | ​ | June 30, | ​ | June 30, | ​ | ​
​ |  | 2019 |  | 2018 |  | 2019 |  | 2018 | ​ |
Trading: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest earned | ​ | $ | (*) | ​ | $ | 0.1 | ​ | $ | 0.1 | ​ | $ | 0.1 | ​ | ​
Unrealized gain (loss) at the end of the period | ​ | $ | (*) | ​ | $ | (0.1) | ​ | $ | (*) | ​ | $ | (0.2) | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available-for-sale: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest earned | ​ |  | (*) | ​ | ​ | (*) | ​ |  | (*) | ​ | ​ | (*) | ​ | ​
Investment redeemed | ​ | $ | — | ​ | $ | 0.1 | ​ | $ | — | ​ | $ | 0.2 | ​ | ​

(*) Less than $0.1 million.

​

NOTE 3 — INVENTORIES:

​

Inventories were as follows:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | At June 30, | ​ | At December 31, | ​
(in millions) |  | 2019 |  | 2018 | ​
Inventory, current: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Metals at average cost: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Finished goods | ​ | $ | 66.3 | ​ | $ | 69.6 | ​
Work-in-process | ​ |  | 271.4 | ​ |  | 256.8 | ​
Ore stockpiles on leach pads | ​ | ​ | 354.8 | ​ | ​ | 328.0 | ​
Supplies at average cost | ​ |  | 376.1 | ​ |  | 378.3 | ​
Total current inventory | ​ | $ | 1,068.6 | ​ | $ | 1,032.7 | ​
Inventory, long-term: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ore stockpiles on leach pads | ​ | $ | 1,205.8 | ​ | $ | 1,177.4 | ​

​

During the six months ended June 30, 2019 and 2018, total leaching costs capitalized as non-current inventory of ore stockpiles on leach pads amounted to $244.6 million and $256.8 million, respectively. Leaching inventories recognized in cost of sales amounted to $189.5 million and $155.6 million for the six months June 30, 2019 and 2018, respectively.

​

NOTE 4 — INCOME TAXES:

​

The income tax provision and the effective income tax rate for the first six months of 2019 and 2018 consisted of ($ in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018 | ​
Statutory income tax provision | ​ | $ | 429.1 | ​ | $ | 473.3 | ​
GILTI Tax | ​ | ​ | — | ​ | ​ | 8.4 | ​
Peruvian royalty | ​ |  | 6.5 | ​ |  | 4.4 | ​
Mexican royalty | ​ |  | 35.2 | ​ |  | 45.0 | ​
Peruvian special mining tax | ​ |  | 18.2 | ​ |  | 14.6 | ​
Total income tax provision | ​ | $ | 489.0 | ​ | $ | 545.7 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Effective income tax rate | ​ | ​ | 38.1 | % | ​ | 38.3 | %

​

These provisions include income taxes for Peru, Mexico and the United States. In addition, the Mexican royalty, the Peruvian royalty and the Peruvian special mining tax are included in the income tax provision. The effective tax rate for the first six months of 2019 remained relatively unchanged from the same period in the prior year, only decreasing by 0.2%. There was a 1.2% decrease in the rate due to the movement in exchange gain or loss from the appreciation in 2019

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of the Mexican peso versus the U.S. dollar measured against the devaluation of the Mexican peso in the same period of 2018, which was mostly offset by an increase in the rate of 1.0% due to small increases in Peruvian income tax, dividend tax and Special Mining tax.

​

Peruvian royalty and special mining tax: The mining royalty charge is based on operating income margins with graduated rates ranging from 1% to 12% of operating profits, with a minimum royalty charge assessed at 1% of net sales. If the operating income margin is 10% or less, the royalty charge is 1% and for each 5% increment in the operating income margin, the royalty charge rate increases by 0.75%, up to a maximum of 12%. The minimum royalty charge assessed at 1% of net sales is recorded as cost of sales and those amounts assessed against operating income are included in the income tax provision. The Company has accrued $19.8 million and $15.9 million of royalty charge in the first six months of 2019 and 2018, respectively, of which $6.5 million and $4.4 million were included in income taxes in 2019 and 2018, respectively.

​

The special mining tax is based on operating income and its rate ranges from 2% to 8.4%. It begins at 2% for operating income margin up to 10% and increases by 0.4% of operating income for each additional 5% of operating income until 85% of operating income is reached. The Company has accrued $18.2 million and $14.6 million of special mining tax as part of the income tax provision for the first six months of 2019 and 2018, respectively.

​

Mexican mining royalty: Mexico has a mining royalty charge of 7.5% on earnings before taxes as defined by Mexican tax regulations and an additional royalty charge of 0.5% over gross income from sales of gold, silver and platinum. The Company has accrued $35.2 million and $45.0 million of royalty taxes as part of the income tax provision for the first six months of 2019 and 2018, respectively.

​

Accounting for uncertainty in income taxes:

​

The amount of unrecognized tax benefits (UTB’s) that, if recognized, could affect the effective tax rate was $69.5 million at June 30, 2019, and $214.5 million at December 31, 2018. The change in the UTB’s relate entirely to U.S. income tax matters and the Company has no unrecognized Peruvian or Mexican tax benefits. The $145 million reduction during the quarter is due to the settlement with the Internal Revenue Service (IRS) of the examination of the 2011-2013 tax years. The change in the UTB’s had been anticipated by the Company, but because of the income tax accounting rules under ASC 740, the issues had to be effectively settled and the examination closed before the effect was final and reflected in the financial statements. The audit closing resulted in an immaterial tax benefit in the financial statements that was the result of the removal of the previous accrual of interest and penalty. The remaining reversal of uncertain tax positions was offset by changes in the deferred tax asset for foreign tax credits and valuation allowance.

​

The Internal Revenue Service field audit of 2014-2016 commenced during the six months ended June 30, 2019 and with the closing of the 2011-2013 examination, the remaining years open to examination and adjustment in the United States are 2014 and all subsequent years.

​

Management does not expect that any of the open years will result in a cash payment within the upcoming twelve months ending June 30, 2020. The Company's reasonable expectations about future resolutions of uncertain items did not materially change during the six months ended June 30, 2019.

​

​

​

​

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NOTE 5 — REVENUE:

​

On January 1, 2018, the Company adopted FASB Accounting Standards Codification Topic 606 (“ASC 606”), Revenue from Contracts with Customers. Upon adoption by the Company, no cumulative effect adjustment was required to be recognized, as the adoption of the standard did not result in a change to the way the Company recognizes its revenue.

​

The Company’s net sales were $3,571.4 million in the six months ended June 30, 2019, compared to $3,678.4 million in the same period of 2018. The geographic breakdown of the Company’s sales is as follows (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, 2019
​ | ​ | ​ | ​ | Mexican | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Mexican | ​ | IMMSA | ​ | Peruvian | ​ | Corporate & | ​ | ​ | ​
​ |  | Open-Pit |  | Unit |  | Operations |  | Elimination |  | Consolidated
The Americas: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mexico | ​ | $ | 312.9 | ​ | $ | 92.7 | ​ | $ | — | ​ | $ | (25.4) | ​ | $ | 380.2
United States | ​ |  | 257.9 | ​ |  | 1.6 | ​ |  | 21.6 | ​ |  | — | ​ |  | 281.1
Peru | ​ |  | — | ​ |  | — | ​ |  | 93.0 | ​ |  | — | ​ |  | 93.0
Brazil | ​ |  | — | ​ |  | 5.1 | ​ |  | 44.6 | ​ |  | — | ​ |  | 49.7
Chile | ​ |  | — | ​ |  | — | ​ |  | 59.3 | ​ |  | — | ​ |  | 59.3
Other American countries | ​ |  | 11.3 | ​ |  | 0.8 | ​ |  | 0.8 | ​ |  | — | ​ |  | 12.9
Europe: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​
Switzerland | ​ |  | 183.0 | ​ |  | 5.1 | ​ |  | 73.0 | ​ |  | — | ​ |  | 261.1
Italy | ​ |  | 7.8 | ​ |  | 2.8 | ​ |  | 63.7 | ​ |  | — | ​ |  | 74.3
Spain | ​ |  | 46.8 | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 46.8
Other European countries | ​ |  | 22.4 | ​ |  | 9.0 | ​ |  | 67.1 | ​ |  | — | ​ |  | 98.5
Asia: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​
Singapore | ​ |  | 72.1 | ​ |  | 4.7 | ​ |  | 195.3 | ​ |  | — | ​ |  | 272.1
Japan | ​ |  | 6.3 | ​ |  | — | ​ |  | 126.4 | ​ |  | — | ​ |  | 132.7
Other Asian countries | ​ |  | 34.1 | ​ |  | 0.5 | ​ |  | 21.7 | ​ |  | — | ​ |  | 56.3
Total | ​ | $ | 954.6 | ​ | $ | 122.3 | ​ | $ | 766.5 | ​ | $ | (25.4) | ​ | $ | 1,818.0

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, 2018
​ | ​ | ​ | ​ | ​ | Mexican | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Mexican | ​ | IMMSA | ​ | Peruvian | ​ | Corporate & | ​ | ​ | ​
​ |  | Open-Pit |  | Unit |  | Operations |  | Elimination |  | Consolidated
The Americas: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mexico | ​ | $ | 328.1 | ​ | $ | 109.3 | ​ | $ | — | ​ | $ | (18.8) | ​ | $ | 418.6
United States | ​ |  | 270.9 | ​ |  | 0.6 | ​ |  | 56.9 | ​ | ​ | — | ​ | ​ | 328.4
Peru | ​ |  | — | ​ |  | — | ​ |  | 106.5 | ​ | ​ | — | ​ | ​ | 106.5
Brazil | ​ |  | — | ​ |  | 9.7 | ​ |  | 64.4 | ​ | ​ | — | ​ | ​ | 74.1
Chile | ​ |  | — | ​ |  | — | ​ |  | 23.6 | ​ | ​ | — | ​ | ​ | 23.6
Other American countries | ​ |  | 13.8 | ​ |  | 1.6 | ​ |  | 0.2 | ​ | ​ | — | ​ | ​ | 15.6
Europe: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Switzerland | ​ | ​ | 116.7 | ​ | ​ | 17.8 | ​ | ​ | 30.6 | ​ | ​ | — | ​ | ​ | 165.1
Italy | ​ | ​ | 4.7 | ​ | ​ | 8.0 | ​ | ​ | 78.1 | ​ | ​ | — | ​ | ​ | 90.8
Spain | ​ | ​ | 44.2 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 44.2
Other European countries | ​ | ​ | 69.9 | ​ | ​ | 5.8 | ​ | ​ | 22.4 | ​ | ​ | — | ​ | ​ | 98.1
Asia: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Singapore | ​ | ​ | 140.2 | ​ | ​ | — | ​ | ​ | 146.6 | ​ | ​ | — | ​ | ​ | 286.8
Japan | ​ | ​ | 29.1 | ​ | ​ | — | ​ | ​ | 104.0 | ​ | ​ | — | ​ | ​ | 133.1
Other Asian countries | ​ | ​ | 43.5 | ​ | ​ | 0.3 | ​ | ​ | 8.5 | ​ | ​ | — | ​ | ​ | 52.3
Total | ​ | $ | 1,061.1 | ​ | $ | 153.1 | ​ | $ | 641.8 | ​ | $ | (18.8) | ​ | $ | 1,837.2

​

​

​

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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30, 2019
​ | ​ | ​ | ​ | Mexican | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Mexican | ​ | IMMSA | ​ | Peruvian | ​ | Corporate & | ​ | ​ | ​
​ |  | Open-Pit |  | Unit |  | Operations |  | Elimination |  | Consolidated
The Americas: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mexico | ​ | $ | 664.2 | ​ | $ | 179.5 | ​ | $ | — | ​ | $ | (45.3) | ​ | $ | 798.4
United States | ​ |  | 536.9 | ​ |  | 3.0 | ​ |  | 28.3 | ​ |  | — | ​ |  | 568.2
Peru | ​ |  | 1.6 | ​ |  | — | ​ |  | 178.7 | ​ |  | — | ​ |  | 180.3
Brazil | ​ |  | — | ​ |  | 12.3 | ​ |  | 92.9 | ​ |  | — | ​ |  | 105.2
Chile | ​ |  | 1.1 | ​ |  | — | ​ |  | 79.2 | ​ |  | — | ​ |  | 80.3
Other American countries | ​ |  | 24.1 | ​ |  | 1.2 | ​ |  | 2.7 | ​ |  | — | ​ |  | 28.0
Europe: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​
Switzerland | ​ |  | 408.3 | ​ |  | 17.1 | ​ |  | 183.4 | ​ |  | — | ​ |  | 608.8
Italy | ​ |  | 37.0 | ​ |  | 8.3 | ​ |  | 111.0 | ​ |  | — | ​ |  | 156.3
Spain | ​ |  | 92.3 | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | 92.3
Other European countries | ​ |  | 45.4 | ​ |  | 14.9 | ​ |  | 121.0 | ​ |  | — | ​ |  | 181.3
Asia: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​
Singapore | ​ |  | 130.6 | ​ |  | 6.4 | ​ |  | 247.8 | ​ |  | — | ​ |  | 384.8
Japan | ​ |  | 16.1 | ​ |  | — | ​ |  | 244.0 | ​ |  | — | ​ |  | 260.1
Other Asian countries | ​ |  | 69.1 | ​ |  | 0.7 | ​ |  | 57.6 | ​ |  | — | ​ |  | 127.4
Total | ​ | $ | 2,026.7 | ​ | $ | 243.4 | ​ | $ | 1,346.6 | ​ | $ | (45.3) | ​ | $ | 3,571.4

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30, 2018
​ | ​ | ​ | ​ | ​ | Mexican | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Mexican | ​ | IMMSA | ​ | Peruvian | ​ | Corporate & | ​ | ​ | ​
​ |  | Open-Pit |  | Unit |  | Operations |  | Elimination |  | Consolidated
The Americas: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mexico | ​ | $ | 696.9 | ​ | $ | 220.7 | ​ | $ | — | ​ | $ | (38.4) | ​ | $ | 879.2
United States | ​ |  | 519.3 | ​ |  | 5.5 | ​ |  | 98.4 | ​ | ​ | — | ​ | ​ | 623.2
Peru | ​ |  | — | ​ |  | — | ​ |  | 200.0 | ​ | ​ | — | ​ | ​ | 200.0
Brazil | ​ |  | — | ​ |  | 22.3 | ​ |  | 127.3 | ​ | ​ | — | ​ | ​ | 149.6
Chile | ​ |  | — | ​ |  | — | ​ |  | 59.6 | ​ | ​ | — | ​ | ​ | 59.6
Other American countries | ​ |  | 26.4 | ​ |  | 2.3 | ​ |  | 1.2 | ​ | ​ | — | ​ | ​ | 29.9
Europe: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Switzerland | ​ | ​ | 199.0 | ​ | ​ | 27.1 | ​ | ​ | 74.4 | ​ | ​ | — | ​ | ​ | 300.5
Italy | ​ | ​ | 13.1 | ​ | ​ | 13.5 | ​ | ​ | 160.3 | ​ | ​ | — | ​ | ​ | 186.9
Spain | ​ | ​ | 88.7 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 88.7
Other European countries | ​ | ​ | 121.7 | ​ | ​ | 10.5 | ​ | ​ | 48.1 | ​ | ​ | — | ​ | ​ | 180.3
Asia: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Singapore | ​ | ​ | 284.1 | ​ | ​ | — | ​ | ​ | 279.0 | ​ | ​ | — | ​ | ​ | 563.1
Japan | ​ | ​ | 73.3 | ​ | ​ | — | ​ | ​ | 219.3 | ​ | ​ | — | ​ | ​ | 292.6
Other Asian countries | ​ | ​ | 107.2 | ​ | ​ | 0.5 | ​ | ​ | 17.1 | ​ | ​ | — | ​ | ​ | 124.8
Total | ​ | $ | 2,129.7 | ​ | $ | 302.4 | ​ | $ | 1,284.7 | ​ | $ | (38.4) | ​ | $ | 3,678.4

​

​

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The following table presents information regarding the sales value by reporting segment of the Company’s significant products for the three and six months ended June 30, 2019 and 2018 (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, 2019
​ |  | ​ | ​ | Mexican | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Mexican |  | IMMSA |  | Peruvian |  | Corporate, Other & |  | Total
(in millions) | ​ | Open-pit | ​ | Unit | ​ | Operations | ​ | Eliminations | ​ | Consolidated
Copper | ​ | $ | 800.2 | ​ | $ | 12.0 | ​ | $ | 651.0 | ​ | $ | (14.3) | ​ | $ | 1,448.9
Molybdenum | ​ |  | 93.5 | ​ |  | — | ​ |  | 61.0 | ​ |  | — | ​ |  | 154.5
Silver | ​ |  | 37.4 | ​ |  | 17.2 | ​ |  | 20.7 | ​ |  | (6.5) | ​ |  | 68.8
Zinc | ​ |  | — | ​ |  | 79.4 | ​ |  | — | ​ |  | (3.8) | ​ |  | 75.6
Other | ​ |  | 23.5 | ​ |  | 13.7 | ​ |  | 33.8 | ​ |  | (0.8) | ​ |  | 70.2
Total | ​ | $ | 954.6 | ​ | $ | 122.3 | ​ | $ | 766.5 | ​ | $ | (25.4) | ​ | $ | 1,818.0

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, 2018
​ |  | ​ | ​ | Mexican | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Mexican |  | IMMSA |  | Peruvian |  | Corporate, Other & |  | Total
(in millions) | ​ | Open-pit | ​ | Unit | ​ | Operations | ​ | Eliminations | ​ | Consolidated
Copper | ​ | $ | 911.7 | ​ | $ | 15.9 | ​ | $ | 571.9 | ​ | $ | (11.0) | ​ | $ | 1,488.5
Molybdenum | ​ |  | 73.9 | ​ |  | — | ​ |  | 30.6 | ​ |  | — | ​ |  | 104.5
Zinc | ​ |  | — | ​ |  | 94.8 | ​ |  | — | ​ |  | — | ​ |  | 94.8
Silver | ​ |  | 48.1 | ​ |  | 23.9 | ​ |  | 18.4 | ​ |  | (7.1) | ​ |  | 83.3
Other | ​ |  | 27.4 | ​ |  | 18.5 | ​ |  | 20.9 | ​ |  | (0.7) | ​ |  | 66.1
Total | ​ | $ | 1,061.1 | ​ | $ | 153.1 | ​ | $ | 641.8 | ​ | $ | (18.8) | ​ | $ | 1,837.2

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30, 2019
​ |  | ​ | ​ | Mexican | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Mexican |  | IMMSA |  | Peruvian |  | Corporate, Other & |  | Total
(in millions) | ​ | Open-pit | ​ | Unit | ​ | Operations | ​ | Eliminations | ​ | Consolidated
Copper | ​ | $ | 1,695.3 | ​ | $ | 23.0 | ​ | $ | 1,173.4 | ​ | $ | (27.2) | ​ | $ | 2,864.5
Molybdenum | ​ |  | 183.6 | ​ |  | — | ​ |  | 89.2 | ​ |  | — | ​ |  | 272.8
Silver | ​ |  | 87.8 | ​ |  | 34.5 | ​ |  | 35.6 | ​ |  | (12.3) | ​ |  | 145.6
Zinc | ​ |  | — | ​ |  | 156.5 | ​ |  | — | ​ |  | (4.2) | ​ |  | 152.3
Other | ​ |  | 60.0 | ​ |  | 29.4 | ​ |  | 48.4 | ​ |  | (1.6) | ​ |  | 136.2
Total | ​ | $ | 2,026.7 | ​ | $ | 243.4 | ​ | $ | 1,346.6 | ​ | $ | (45.3) | ​ | $ | 3,571.4

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30, 2018
​ |  | ​ | ​ | Mexican | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Mexican |  | IMMSA |  | Peruvian |  | Corporate, Other & |  | Total
(in millions) | ​ | Open-pit | ​ | Unit | ​ | Operations | ​ | Eliminations | ​ | Consolidated
Copper | ​ | $ | 1,821.1 | ​ | $ | 27.1 | ​ | $ | 1,135.9 | ​ | $ | (22.2) | ​ | $ | 2,961.9
Molybdenum | ​ |  | 164.9 | ​ |  | — | ​ |  | 75.9 | ​ |  | — | ​ |  | 240.8
Zinc | ​ |  | — | ​ |  | 189.8 | ​ |  | — | ​ |  | (0.1) | ​ |  | 189.7
Silver | ​ |  | 90.7 | ​ |  | 44.5 | ​ |  | 33.8 | ​ |  | (14.6) | ​ |  | 154.4
Other | ​ |  | 53.0 | ​ |  | 41.0 | ​ |  | 39.1 | ​ |  | (1.5) | ​ |  | 131.6
Total | ​ | $ | 2,129.7 | ​ | $ | 302.4 | ​ | $ | 1,284.7 | ​ | $ | (38.4) | ​ | $ | 3,678.4

​

​

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The opening and closing balances of receivables by reporting segment of the Company were as follows (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Mexican | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Mexican |  | IMMSA |  | Peruvian |  | Corporate & |  | ​ | ​
​ | ​ | Open-Pit | ​ | Unit | ​ | Operations | ​ | Elimination | ​ | Consolidated
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of June 30, 2019: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Trade receivables | ​ | $ | 378.6 | ​ | $ | 39.8 | ​ | $ | 368.7 | ​ | $ | — | ​ | $ | 787.1
Related parties | ​ |  | 82.2 | ​ |  | — | ​ |  | — | ​ |  | 8.8 | ​ |  | 91.0
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of December 31, 2018: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Trade receivables | ​ | $ | 505.9 | ​ | $ | 50.5 | ​ | $ | 266.0 | ​ | $ | — | ​ | $ | 822.4
Related parties | ​ |  | 81.6 | ​ |  | — | ​ |  | — | ​ |  | 19.9 | ​ |  | 101.5

​

As of June 30, 2019, the Company has long-term contracts with promises to deliver the following products:

​

​ | ​ | ​
Copper concentrates (in tons) |  | 1,090,000
Copper cathodes (in tons) | ​ | 48,000
Molybdenum concentrates (in tons) |  | 24,106
Sulfuric acid (in tons) |  | 331,620

​

Provisionally priced sales: At June 30, 2019, the Company has recorded provisionally priced sales of copper at average forward prices per pound, and molybdenum at the June 30, 2019 market price per pound. These sales are subject to final pricing based on the average monthly London Metal Exchange (“LME”), or New York Commodities Exchange (“COMEX”), copper prices and Dealer Oxide molybdenum prices in the future month of settlement.

​

Following are the provisionally priced copper and molybdenum sales outstanding at June 30, 2019:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Sales volume |  | Priced at |  | ​
​ | ​ | (million lbs.) | ​ | (per pound) | ​ | Month of settlement
Copper | ​ | 123.5 | ​ | 2.72 | ​ | July through November 2019
Molybdenum | ​ | 13.8 | ​ | 11.85 | ​ | July through September 2019

​

The provisional sales price adjustment included in accounts receivable and net sales at June 30, 2019 includes negative adjustments of $6.4 million and $5.7 million for copper and molybdenum, respectively.

​

Management believes that the final pricing of these sales will not have a material effect on the Company’s financial position or results of operations.

​

​

NOTE 6 — ASSET RETIREMENT OBLIGATION:

​

Peruvian operations:

​

The Company maintains an asset retirement obligation for its mining properties in Peru, as required by the Peruvian Mine Closure Law. In accordance with the requirements of this law the Company’s closure plans were approved by the Peruvian Ministry of Energy and Mines (“MINEM”). As part of the closure plans, the Company is required to provide annual guarantees over the estimated life of the mines, based on a present value approach, and to furnish the funds for the asset retirement obligation. This law requires a review of closing plans every five years. Currently and for the near-term future, the Company has pledged the value of its Lima office complex and a warehouse in Lima as support for this obligation. The accepted values of these facilities, for this purpose, are of $45.3 million. Through June 2019, the Company has provided guarantees of $37.8 million. The closure cost recognized for this liability includes the cost, as outlined in its closure plans, of dismantling the Toquepala and Cuajone concentrators, the Ilo smelter and refinery, and the shops and auxiliary facilities at the three units. In March 2016, MINEM approved the Mining Closure Plan for the Toquepala expansion project. The closure plan for the Tia Maria project was approved in February 2017 and the construction permit was received on July 8, 2019. However, the has not recorded a retirement obligation for the Tia

14

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Maria project because the work on the project is still on hold. The Company believes that under these circumstances the recording of a retirement obligation is not appropriate. In accordance with requirements of Peruvian law, the Company in December 2017 and February 2018, submitted to MINEM revised closure plans for the Cuajone mine and the Ilo facilities respectively. The revised closure plan for the Ilo facility was approved in January 2019 and after comments received from MINEM, the Company submitted a new revised closure plan for the Cuajone mine which at June 30, 2019 is pending approval. As result of these new estimates, in the second quarter of 2019, the Company has increased the asset retirement obligation by $28.1 million.

​

Mexican operations:

​

The Company has recognized an estimated asset retirement obligation for its mining properties in Mexico as part of its environmental commitment. Even though there is currently no enacted law, statute, ordinance, written or oral contract requiring the Company to carry out mine closure and environmental remediation activities, the Company believes that a constructive obligation presently exists based on the remediation requirements caused by the closure of any facility. The overall cost recognized for mining closure in Mexico includes the estimated costs of dismantling concentrators, smelter and refinery plants, shops and other facilities. During 2018, the Company made a change in the estimate for the asset retirement obligation in its Mexican operations, mainly due to a change in the discount rate used to determine such obligation. The effect of this change was a reduction in the asset retirement obligation of $10.4 million, which was recorded in the second quarter of 2018.

​

The following table summarizes the asset retirement obligation activity for the six months ended June 30, 2019 and 2018 (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018
Balance as of January 1, | ​ | $ | 217.7 | ​ | $ | 222.5
Changes in estimates | ​ |  | 25.2 | ​ |  | (15.6)
Closure payments | ​ |  | (0.4) | ​ |  | —
Accretion expense | ​ |  | 6.2 | ​ |  | 6.2
Balance as of June 30, | ​ | $ | 248.7 | ​ | $ | 213.1

​

​

NOTE 7 — RELATED PARTY TRANSACTIONS:

​

The Company has entered into certain transactions in the ordinary course of business with parties that are controlling shareholders or their affiliates. These transactions include the lease of office space, air and railroad transportation, construction services, energy supply, and other products and services related to mining and refining. The Company lends and borrows funds among affiliates for acquisitions and other corporate purposes. These financial transactions bear interest and are subject to review and approval by senior management, as are all related party transactions. It is the Company’s policy that the Audit Committee of the Board of Directors shall review all related party transactions. The Company is prohibited from entering or continuing a material related party transaction that has not been reviewed and approved or ratified by the Audit Committee.

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Receivable and payable balances with related parties are shown below (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | At June 30, | ​ | At December 31, | ​
​ |  | 2019 |  | 2018 | ​
Related parties receivable current: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Grupo Mexico and affiliates: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Asarco LLC | ​ | $ | 75.5 | ​ | $ | 74.4 | ​
Americas Mining Corporation (“AMC”) | ​ | ​ | — | ​ | ​ | 11.0 | ​
AMMINCO Apoyo Administrativo, S.A. de C.V. (“AMMINCO”) | ​ |  | — | ​ |  | 0.2 | ​
Compania Perforadora Mexico S.A.P.I. de C.V. and affiliates | ​ |  | 0.4 | ​ |  | 1.4 | ​
Ferrocarril Mexicano, S.A. de C.V. | ​ |  | 0.1 | ​ |  | 0.1 | ​
Grupo Mexico | ​ |  | 2.7 | ​ |  | 2.7 | ​
Mexico Generadora de Energia S. de R.L. ("MGE") | ​ | ​ | 10.7 | ​ | ​ | 10.3 | ​
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates | ​ | ​ | 0.5 | ​ | ​ | 0.6 | ​
Related to the controlling group: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Boutique Bowling de Mexico S.A. de C.V. | ​ | ​ | 0.1 | ​ | ​ | 0.3 | ​
Mexico Transportes Aereos, S.A. de C.V. ("Mextransport") | ​ | ​ | 0.9 | ​ | ​ | 0.1 | ​
Operadora de Cinemas S.A. de C.V. | ​ | ​ | 0.1 | ​ | ​ | 0.4 | ​
​ | ​ | $ | 91.0 | ​ | $ | 101.5 | ​
Related parties payable: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Grupo Mexico and affiliates: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Asarco LLC | ​ | $ | 8.4 | ​ | $ | 4.1 | ​
AMMINCO | ​ | ​ | 2.0 | ​ | ​ | 8.0 | ​
Eolica El Retiro, S.A.P.I. de C.V. | ​ |  | 0.5 | ​ |  | 1.0 | ​
Ferrocarril Mexicano S.A. de C.V. | ​ |  | 8.9 | ​ |  | 6.4 | ​
Grupo Mexico | ​ |  | 1.5 | ​ |  | 0.6 | ​
MGE | ​ | ​ | 31.0 | ​ | ​ | 40.6 | ​
Mexico Proyectos y Desarrollos S.A. de C.V. and affiliates | ​ | ​ | 14.3 | ​ | ​ | 14.4 | ​
Related to the controlling group: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Boutique Bowling de Mexico S.A. de C.V. | ​ |  | 0.1 | ​ |  | 0.1 | ​
Operadora de Cinemas S.A. de C.V. | ​ | ​ | — | ​ | ​ | 0.1 | ​
​ | ​ | $ | 66.7 | ​ | $ | 75.3 | ​

​

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Purchase and sale activity:

​

Grupo Mexico and affiliates:

​

The following table summarizes the purchase and sale activities with Grupo Mexico and its affiliates in the six months ended June 30, 2019 and 2018 (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018
Purchase activity | ​ | ​ | ​ | ​ | ​ | ​
Asarco LLC | ​ | $ | 19.8 | ​ | $ | 24.0
AMMINCO | ​ | ​ | 4.4 | ​ | ​ | —
Eolica El Retiro, S.A.P.I. de C.V. | ​ |  | 2.0 | ​ |  | 1.3
Ferrocarril Mexicano, S.A. de C.V. | ​ |  | 20.5 | ​ |  | 22.9
Grupo Mexico | ​ | ​ | 5.0 | ​ | ​ | 9.0
MGE | ​ |  | 100.7 | ​ |  | 101.5
Mexico Proyectos y Desarrollos S.A. de C.V. and affiliates | ​ |  | 35.6 | ​ |  | 44.5
Total purchases | ​ | $ | 188.0 | ​ | $ | 203.2
Sales activity | ​ | ​ | ​ | ​ | ​ | ​
Asarco LLC | ​ | $ | 5.8 | ​ | $ | 70.9
Ferrocarril Mexicano, S.A. de C.V. | ​ |  | 0.1 | ​ |  | —
MGE | ​ | ​ | 21.8 | ​ | ​ | 41.8
Total sales | ​ | $ | 27.7 | ​ | $ | 112.7

​

Grupo Mexico, the parent and the majority indirect stockholder of the Company, and its affiliates provide various services to the Company. These services are primarily related to accounting, legal, tax, financial, treasury, human resources, price risk assessment and hedging, purchasing, procurement and logistics, sales and administrative and other support services. The Company´s Mexican operations pay Grupo Mexico and the Company´s Peruvian operations pay AMMINCO for these services and expect to continue requiring these services in the future.

​

In the six months ended June 30, 2019, the Company made donations of $4.8 million to Fundacion Grupo Mexico A.C., an organization dedicated to promoting the social and economic development of the communities close to the Company’s Mexican operations.

​

In addition, in December 2018, in accordance with the Company´s tax sharing agreement with its parent, the Company´s Peruvian operations advanced $11 million to AMC for the payment of the Company’s portion of the GILTI tax that later was determined not to be necessary. This amount was reimbursed to the Company in the first quarter of 2019.

​

The Company’s Mexican operations paid fees for freight services provided by Ferrocarril Mexicano, S.A de C.V. and for construction services provided by Mexico Proyectos y Desarrollos, S.A. de C.V. and its affiliates, which are all subsidiaries of Grupo Mexico.

​

The Company’s Mexican operations purchased scrap and other residual copper mineral from Asarco LLC, and power from MGE. Both companies are subsidiaries of Grupo Mexico.

​

In 2012, the Company signed a power purchase agreement with MGE, whereby MGE will supply some of the Company’s Mexican operations with power through 2032. MGE has two natural gas-fired combined cycle power generating units, with a net total capacity of 516.2 megawatts and has been supplying power to the Company since December 2013. Currently, MGE is supplying 4.6% of its power output to third-party energy users; compared to 17% at June 30, 2018.

​

In 2014, Mexico Generadora de Energia Eolica, S. de R.L. de C.V, an indirect subsidiary of Grupo Mexico, located in Oaxaca, Mexico, acquired Eolica el Retiro. Eolica el Retiro is a windfarm with 37 wind turbines. This company started operations in January 2014 and started to sell power to Industrial Minera Mexico and subsidiaries (IMMSA) and other

17

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subsidiaries of Grupo Mexico in the third quarter of 2014. Currently, Eolica el Retiro is supplying approximately 27.8% of its power output to IMMSA.

​

The Company sold copper cathodes, rod and anodes, as well as sulfuric acid, silver, gold and lime to Asarco LLC. In addition, the Company received fees for building rental and maintenance services provided to Mexico Proyectos y Desarrollos, S.A. de C.V. and its affiliates and for natural gas and services provided to MGE; all subsidiaries of Grupo Mexico.

​

Companies with relationships to the controlling group:

​

The following table summarizes the purchase and sales activities with other Larrea family companies in the six months ended June 30, 2019 and 2018 (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018
Purchase activity | ​ | ​ | ​ | ​ | ​ | ​
Boutique Bowling de Mexico S.A. de C.V. | ​ | $ | 0.1 | ​ | $ | 0.1
Empresarios Industriales de Mexico, S.A. de C.V. | ​ | ​ | 0.1 | ​ | ​ | —
Mextransport | ​ | ​ | 0.8 | ​ | ​ | 0.7
Operadora de Cinemas S.A. de C.V. | ​ | ​ | — | ​ | ​ | 0.1
Total purchases | ​ | $ | 1.0 | ​ | $ | 0.9
Sales activity | ​ | ​ | ​ | ​ | ​ | ​
Boutique Bowling de Mexico S.A. de C.V. | ​ | $ | — | ​ | $ | 0.1
Mextransport | ​ | ​ | 0.9 | ​ | ​ | 0.7
Operadora de Cinemas S.A. de C.V. | ​ | ​ | — | ​ | ​ | 0.1
Total sales | ​ | $ | 0.9 | ​ | $ | 0.9

​

The Larrea family controls a majority of the capital stock of Grupo Mexico, and has extensive interests in other businesses, including transportation, real estate and entertainment. The Company engages in certain transactions in the ordinary course of business with other entities controlled by the Larrea family relating to the lease of office space, air transportation and entertainment.

​

The Company’s Mexican operations paid fees for entertainment services provided by Boutique Bowling de Mexico, S.A de C.V. and Operadora de Cinemas, S.A. de C.V. Both companies are controlled by the Larrea family.

​

Mextransport provides aviation services to the Company´s Mexican operations. This is a company controlled by the Larrea family.

​

The Company´s Mexican operations also paid fees for surveillance services provided by Empresarios Industriales de Mexico, S.A. de C.V. This is also a company controlled by the Larrea family.

​

In addition, the Company received fees for building rental and maintenance provided to Boutique Bowling de Mexico S.A. de C.V., Operadora de Cinemas S.A. de C.V and Mextransport.

​

Equity Investment in Affiliate: The Company has a 44.2% participation in Compania Minera Coimolache S.A. (“Coimolache”), which it accounts for on the equity method. Coimolache owns Tantahuatay, a gold mine located in the northern part of Peru.

​

It is anticipated that in the future the Company will enter into similar transactions with these same parties.

​

In the second quarter of 2019, the Company did not have purchase or sales activities with companies having relationships with SCC executive officers.

​

​

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NOTE 8 — BENEFIT PLANS:

​

Post retirement defined benefit plans:

​

The Company has two noncontributory defined benefit pension plans covering former salaried employees in the United States and certain former expatriate employees in Peru. Effective October 31, 2000, the Board of Directors amended the qualified pension plan to suspend the accrual of benefits.

​

In addition, the Company’s Mexican subsidiaries have a defined contribution pension plan for salaried employees and a non-contributory defined benefit pension plan for union employees.

​

The components of net periodic benefit costs for the six months ended June 30, 2019 and 2018 are as follows (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​
(in millions) |  | 2019 |  | 2018
Service cost | ​ | $ | 0.5 | ​ | $ | 0.5
Interest cost | ​ |  | 0.9 | ​ |  | 0.8
Expected return on plan assets | ​ |  | (1.7) | ​ |  | (1.8)
Amortization of prior service cost / (credit) | ​ |  | 0.1 | ​ |  | 0.1
Amortization of net loss/(gain) | ​ |  | 0.1 | ​ |  | 0.1
Net periodic benefit cost | ​ | $ | (0.1) | ​ | $ | (0.3)

​

Post-retirement health care plans:

​

United States: The Company adopted a post-retirement health care plan for retired salaried employees eligible for Medicare in 1996. The Company manages the plan and is currently providing health benefits to retirees. The plan is accounted for in accordance with ASC 715 “Compensation retirement benefits”.

​

In Mexico, health services are provided by the Mexican Social Security Institute.

​

The components of net periodic benefit cost for the six months ended June 30, 2019 and 2018 are as follows (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​
(in millions) |  | 2019 |  | 2018
Interest cost | ​ | $ | 0.5 | ​ | $ | 0.5
Amortization of net loss (gain) | ​ |  | (0.1) | ​ |  | (0.1)
Amortization of prior service cost/ (credit) | ​ |  | (*) | ​ |  | (*)
Net periodic benefit cost | ​ | $ | 0.4 | ​ | $ | 0.4

(*) amount is lower than $0.1 million

​

NOTE 9 — COMMITMENTS AND CONTINGENCIES:

​

Environmental matters:

​

The Company has instituted extensive environmental conservation programs at its mining facilities in Peru and Mexico. The Company’s environmental programs include, among others, water recovery systems to conserve water and minimize the impact on nearby streams, reforestation programs to stabilize the surface of the tailings dams and the implementation of scrubbing technology in the mines to reduce dust emissions.

​

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Environmental capital investments in the six months ended June 30, 2019 and 2018 were as follows (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018
Peruvian operations | ​ | $ | 13.9 | ​ | $ | 18.0
Mexican operations | ​ |  | 18.4 | ​ |  | 26.5
​ | ​ | $ | 32.3 | ​ | $ | 44.5

​

Peruvian operations: The Company’s operations are subject to applicable Peruvian environmental laws and regulations. The Peruvian government, through the Ministry of Environment (“MINAM”) conducts annual audits of the Company’s Peruvian mining and metallurgical operations. Through these environmental audits, matters related to environmental obligation, compliance with legal requirements, atmospheric emissions, effluent monitoring and waste management are reviewed. Peruvian law requires that companies in the mining industry provide assurances for future mine closure and remediation. In accordance with the requirements of this law, the Company’s closure plans were approved by MINEM. See Note 6 “Asset retirement obligation,” for further discussion of this matter.

​

Air Quality Standards (“AQS”): In June 2017, MINAM enacted a supreme decree which defines new AQS for daily sulfur dioxide in the air. The Company believes that these new AQS will allow Peruvian industry to be more competitive with other countries. As of June 30, 2019, the Company maintains a lower daily average level of µg/m3 of SO2, than those required by the new AQS.

​

Soil Environmental Quality Standards (“SQS”): In 2013, the Peruvian government enacted SQS applicable to any existing facility or project that generates or could generate the risk of soil contamination in its area of operation or influence. In March 2014, MINAM issued a supreme decree, which established additional provisions for the gradual implementation of SQS.

​

In accordance with the regulatory requirements, the Company has been working on a characterization phase and a Soil Decontamination Plan (“SDP”) for environmentally impacted sites in each of its operating units (Toquepala, Cuajone, and Ilo) with the assistance of consulting companies. It is estimated that the Toquepala and Cuajone SDP will be presented to the authorities for review and approval at the end of the third quarter of 2019, and the Ilo SDP will be submitted during the last quarter of 2019.

​

While the Company believes that there is a reasonable possibility that a potential loss contingency may exist, it cannot currently reasonably estimate the amount of the contingency. The Company believes that a reasonable determination of the loss will be possible once the characterization study and the SDP are substantially completed and approved, which is expected for 2020. At that time the Company will be in a position to estimate the remediation cost. Furthermore, the Company does not believe that it can estimate a reasonable range of possible costs until the noted studies have substantially progressed and therefore is not able to disclose a range of costs that is meaningful.

​

Mexican operations: The Company’s operations are subject to applicable Mexican federal, state and municipal environmental laws, to Mexican official standards, and to regulations for the protection of the environment, including regulations relating to water supply, water quality, air quality, noise levels and hazardous and solid waste.

​

The principal legislation applicable to the Company’s Mexican operations is the Federal General Law of Ecological Balance and Environmental Protection (the “General Law”), which is enforced by the Federal Bureau of Environmental Protection (“PROFEPA”). PROFEPA monitors compliance with environmental legislation and enforces Mexican environmental laws, regulations and official standards. It may also initiate administrative proceedings against companies that violate environmental laws, which in the most extreme cases may result in the temporary or permanent shutdown of non-complying facilities, the revocation of operating licenses and/or other sanctions or fines.

​

In 2011, the General Law was amended, giving an individual or entity the ability to contest administrative acts, including environmental authorizations, permits or concessions granted, without the need to demonstrate the actual existence of harm to the environment as long as it can be argued that the harm may be caused. In addition, in 2011, amendments to the Civil Federal Procedures Code (“CFPC”) were enacted. These amendments establish three categories of collective actions by means of which 30 or more people claiming injury derived from environmental, consumer

20

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protection, financial services and economic competition issues will be considered to be sufficient in order to have a legitimate interest to seek through a civil procedure restitution or economic compensation or suspension of the activities from which the alleged injury derived. The amendments to the CFPC may result in more litigation, with plaintiffs seeking remedies, including suspension of the activities alleged to cause harm.

​

In 2013, the Environmental Liability Federal Law was enacted. The law establishes general guidelines for actions to be considered to likely cause environmental harm. If a possible determination regarding harm occurs, environmental clean-up and remedial actions sufficient to restore environment to a pre-existing condition should be taken. Under this law, if restoration is not possible, compensation measures should be provided. Criminal penalties and monetary fines can be imposed under this law.

​

On February 2019, the Mexican Supreme Court confirmed the constitutionality of an ecological tax to extractive activities developed in the state of Zacatecas, which taxes the environmental remediation actions, emissions of certain gases to the atmosphere, emissions of pollutant substances to the soil or water, and waste storage within the state territory. The Company is evaluating the potential impact of this new environmental regulation in its financial position.

​

The Company believes that all of its facilities in Peru and Mexico are in material compliance with applicable environmental, mining and other laws and regulations. The Company also believes that continued compliance with environmental laws of Mexico and Peru will not have a material adverse effect on the Company’s business, properties, result of operations, financial condition or prospects and will not result in material capital investments.

​

Litigation matters:

​

Peruvian operations

​

The Tia Maria Mining Project

​

There are four lawsuits filed against the Peruvian Branch of the Company related to the Tia Maria project. The lawsuits seek (i) to declare null and void the resolution which approved the Environmental Impact Assessment of the project; (ii) the cancellation of the project and the withdrawal of mining activities in the area and (iii) to declare null and void the mining concession application of the Tia Maria project. The lawsuits were filed by Messrs. Jorge Isaac del Carpio Lazo (filed May 22, 2015), Ernesto Mendoza Padilla (filed May 26, 2015), Juan Alberto Guillen Lopez (filed June 18, 2015) and Junta de Usuarios del Valle del Tambo (filed April 30, 2015).

​

The del Carpio Lazio case was rejected by the court of first instance on November 14, 2016. The plaintiff filed an appeal before the Superior Court on January 3, 2017. On January 9, 2018, the lawyers of both parties presented their respective positions before the Appellate Court. On March 8, 2018, the Appellate Court issued its final decision, which upholds the first instance ruling. On April 27, 2018, the plaintiff filed an extraordinary appeal before the Supreme Court. As of June 30, 2019, the case remains pending resolution.

​

The Mendoza Padilla case was initially rejected by the lower court on July 8, 2015. This ruling was confirmed by the Superior Court on June 14, 2016. On July 12, 2016, the case was appealed before the Constitutional Court. On November 20, 2018, the Constitutional Court reversed the previous decisions and remanded the case to the lower court for further action. As of June 30, 2019, the case remains pending resolution.

​

The Guillen Lopez case is currently before the lower court. As of June 30, 2019, the case remains pending resolution without further developments.

​

The Junta de Usuarios del Valle del Tambo case is currently before the lower court. On May 2016, the Company was included in the process, after the Ministry of Energy and Mines filed a civil complaint. On March 6, 2019, the Company was formally notified of the lawsuit and answered the complaint on March 20, 2019. As of June 30, 2019, the case remains pending resolution.

​

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The Company asserts that these lawsuits are without merit and is vigorously defending against them. The potential contingency amount for these cases cannot be reasonably estimated by management at this time.

​

Special Regional Pasto Grande Project (“Pasto Grande Project”)

​

In 2012, the Pasto Grande Project, an entity of the Regional Government of Moquegua, filed a lawsuit against SCC’s Peruvian Branch alleging property rights over a certain area used by the Peruvian Branch and seeking the demolition of the tailings dam where SCC’s Peruvian Branch has deposited its tailings from the Toquepala and Cuajone operations since 1995. The Peruvian Branch has had title to use the area in question since 1960 and has constructed and operated the tailings dams with proper governmental authorization, since 1995. Upon a motion filed by the Peruvian Branch, the lower court has included MINEM as a defendant in this lawsuit. MINEM has answered the complaint and denied the validity of the claim. As of June 30, 2019, the case remains pending resolution without further developments. SCC’s Peruvian Branch asserts that the lawsuit is without merit and is vigorously defending against it. The amount of this contingency cannot be reasonably estimated by management at this time.

​

Mexican operations

​

The Accidental Spill at Buenavista Mine of 2014

​

In relation to the 2014 accidental spill of copper sulfate solution that occurred at a leaching pond of the Buenavista mine, the following legal procedures are pending against the Company:

​

On August 19, 2014, PROFEPA, as part of the administrative proceeding initiated after the spill, announced the filing of a criminal complaint against Buenavista del Cobre S.A. de C.V. (“BVC”), a subsidiary of the Company, in order to determine those responsible for the environmental damages. During the second quarter of 2018, the criminal complaint was dismissed. This decision was appealed and remains pending resolution as of June 30, 2019.

​

Through the first half of 2015, six collective action lawsuits were filed in federal courts in Mexico City and Sonora against two subsidiaries of the Company seeking economic compensation, clean up and remedial activities in order to restore the environment to its pre-existing conditions. Two of the collective action lawsuits have been dismissed by the court. The plaintiffs in the four remaining lawsuits are: Acciones Colectivas de Sinaloa, A.C. which established two collective actions, Defensa Colectiva A.C.; and Ana Luisa Salazar Medina et al. which has been granted a collective action certification. The remaining plaintiffs have requested cautionary measures on the construction of facilities for the monitoring of public health services and the prohibition of the closure of the Río Sonora Trust. As of June 30, 2019, regarding the case of Ana Luisa Salazar Medina et al, the trial date has expired. Since the plaintiffs were notified of the expiration of their claims and did not appeal the resolution, this lawsuit has concluded, without responsibility for Buenavista del Cobre, S.A. de C.V. The other cases remain pending resolution as of June 30, 2019.

​

Similarly, during 2015, eight civil action lawsuits were filed against BVC in the state courts of Sonora seeking damages for alleged injuries and for moral damages as a consequence of the spill. The plaintiffs in the state court lawsuits are: Jose Vicente Arriola Nunez et al; Santana Ruiz Molina et al; Andres Nogales Romero et al; Teodoro Javier Robles et al; Gildardo Vasquez Carvajal et al; Rafael Noriega Souffle et al; Grupo Banamichi Unido de Sonora El Dorado, S.C. de R.L. de C.V; and Marcelino Mercado Cruz. In 2016, three additional civil action lawsuits, claiming similar damages, were filed by Juan Melquicedec Lebaron; Blanca Lidia Valenzuela Rivera et al and Ramona Franco Quijada et al. In 2017, BVC was served with thirty-three additional civil action lawsuits, claiming similar damages. The lawsuits were filed by Francisco Javier Molina Peralta et al; Anacleto Cohen Machini et al; Francisco Rafael Alvarez Ruiz et al; Jose Alberto Martinez Bracamonte et al; Gloria del Carmen Ramirez Duarte et al; Flor Margarita Sabori et al; Blanca Esthela Ruiz Toledo et al; Julio Alfonso Corral Domínguez et al; Maria Eduwiges Bracamonte Villa et al; Francisca Marquez Dominguez et al; Jose Juan Romo Bravo et al; Jose Alfredo Garcia Leyva et al; Gloria Irma Dominguez Perez et al; Maria del Refugio Romero et al; Miguel Rivas Medina et al; Yolanda Valenzuela Garrobo et al; Maria Elena Garcia Leyva et al; Manuel Alfonso Ortiz Valenzuela et al; Francisco Alberto Arvayo Romero et al; Maria del Carmen Villanueva Lopez et al; Manuel Martin Garcia Salazar; Miguel Garcia Arguelles et al; Dora Elena Rodriguez Ochoa et al; Honora Eduwiges Ortiz Rodriguez et al; Francisco Jose Martinez Lopez et al; Maria Eduwiges Lopez Bustamante; Rodolfo Barron Villa et al, Jose Carlos Martinez Fernandez et al, Maria de los Angeles Fabela et al; Rafaela Edith Haro

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et al; Luz Mercedes Cruz et al; Juan Pedro Montaño et al; and Juana Irma Alday Villa. During the first quarter of 2018, BVC was served with another civil action lawsuit, claiming similar damages. The lawsuit was filed by Alma Angelina Del Cid Rivera et al. During the last quarter of 2018, BVC was served with other three civil action lawsuits, claiming similar damages, such lawsuits were filed by Los Corrales de la Estancia, S.C. de R.L.; Jose Antonio Navarro; Jesus Maria Peña Molina, et al. As of June 30, 2019, these cases remain pending resolution.

​

During 2015, four constitutional lawsuits (juicios de amparo) were filed before Federal Courts against various authorities and against a subsidiary of the Company, arguing; (i) the alleged lack of a waste management program approved by SEMARNAT; (ii) the alleged lack of a remediation plan approved by SEMARNAT with regard to the August 2014 spill; (iii) the alleged lack of community approval regarding the environmental impact authorizations granted by SEMARNAT to one subsidiary of the Company; and (iv) the alleged inactivity of the authorities with regard of the spill in August 2014. The plaintiffs of these lawsuits are: Francisca Garcia Enriquez, et al which established two lawsuits, Francisco Ramon Miranda, et al and Jesus David Lopez Peralta et al. During the third quarter of 2016, four additional constitutional lawsuits, claiming similar damages were filed by Mario Alberto Salcido et al; Maria Elena Heredia Bustamante et al; Martin Eligio Ortiz Gamez et al; and Maria de los Angeles Enriquez Bacame et al. During the third quarter of 2017, BVC was served with another constitutional lawsuit filed by Francisca García Enriquez et al. In 2018, BVC was served with two additional constitutional lawsuits that were filed against SEMARNAT by Norberto Bustamante et al. Regarding the constitutional lawsuit filed by Maria Elena Heredia Bustamante et al; in which it was claimed the lack of community approval regarding the authorization granted by SEMARNAT to build the new BVC tailings dam, on September 5, 2018, the Supreme Court of Justice issued a resolution which established that such authorization was granted to BVC in compliance with the applicable legislation. However, SEMARNAT must carry out a public meeting to inform the community of the technical aspects required to build the dam, potential impacts and prevention measures, with no material effects to BVC’s operations. As of June 30, 2019, the remaining cases are still pending resolution.

​

It is not currently possible to determine the extent of the damages sought in these state and federal lawsuits but the Company considers that these lawsuits are without merit. Accordingly, the Company is vigorously defending against them. Nevertheless, the Company considers that none of the legal proceedings resulting from the spill, individually or in the aggregate, would have a material effect on its financial position or results of operations.

​

Corporate operations

​

Carla Lacey, on behalf of herself and all other similarly situated stockholders of Southern Copper Corporation, and derivatively on behalf of Southern Copper Corporation

​

In April 2019, a derivative lawsuit was filed against the Company, certain of its current and former Directors, and Grupo México in the Delaware Court of Chancery relating to certain construction contracts, contracts for the purchase and sale of minerals, and transportation contracts entered into between the Company’s subsidiaries and subsidiaries of Grupo México. The complaint alleges, among other things, that the construction contracts, the mineral contracts and the transportation contracts were unfair as a result of breaches of fiduciary duties and the Company’s charter. The complaint seeks, among other things, unspecified monetary damages. The complaint and the summons have not yet been served. The Company believes it has a meritorious defense to this action and that the action will not have an adverse effect on its financial position.

​

Labor matters:

​

Peruvian operations: 64% of the Company’s 4,834 Peruvian employees were unionized at June 30, 2019. Currently, there are six separate unions, one large union and five smaller unions. In June 2018, the Company signed a three-year collective bargaining agreement with one of the smaller unions. This agreement includes, among other things, annual salary increases of 5% for each year starting September 2018, and a signing bonus of S/45,000 (approximately $13,600) which was recorded as labor expense. In August 2018, the Company signed a three-year collective bargaining agreement with three additional unions. This agreement includes, among other things, annual salary increases of 5% for each year starting December 2018, and a signing bonus of S/45,000 (approximately $13,600) which was recorded as labor expense. In March 2019, the Company signed an agreement with one additional union. The agreement also included

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annual salary increases of 5% for each year starting September 2018, and a signing bonus of S/45,000 (approximately $13,600) which was recorded as labor expense in the first quarter of 2019.

​

As of June 30, 2019, the Company continues negotiations on collective bargaining agreements with one union.

​

Mexican operations: In recent years, the Mexican operations have experienced a positive improvement of their labor environment, as its workers opted to change their affiliation from the Sindicato Nacional de Trabajadores Mineros, Metalurgicos y Similares de la Republica Mexicana (the “National Mining Union”) to other less politicized unions.

​

The workers of the San Martin mine were on strike since July 2007. On February 28, 2018, the striking workers of the San Martín mine of IMMSA held an election to vote on the union that will hold the collective bargaining agreement at the San Martín mine. The Federacion Nacional de Sindicatos Independientes (the National Federation of Independent Unions), won the vote by a majority. Nevertheless, the vote was challenged by the National Mining Union. On June 26, 2018, the Federal Mediation and Arbitration Board issued a ruling recognizing the election results. Due to the agreement between workers and the Company to end the protracted strike, on August 22, 2018, the Federal Mediation and Arbitration Board authorized the restart of operations of the San Martín mine. Such authorization was challenged by the National Mining Union. On April 4, 2019, the Federal Mediation and Arbitration Board recognized again the election results from February 28, 2018; in which the National Federation of Independent Unions won by a majority. The Company is working on a rehabilitation plan to restore operations at the San Martin mine with a budget of $87 million. At June 30, 2019 the plan is in progress with a total expense of $50.1 million. The Company began production in the second quarter of 2019, and expects to fully restore production in the third quarter of 2019.

​

In the case of the Taxco mine, its workers have been on strike since July 2007. After several legal procedures, in August 2015, the Supreme Court decided to assert jurisdiction over the case and to rule on it directly. As of June 30, 2019, the case remains pending resolution without further developments.

​

It is expected that operations at the Taxco mine will remain suspended until the labor issues are resolved. In view of the lengthy strike, the Company has reviewed the carrying value of the Taxco mine to ascertain whether impairment exists. The Company concluded that there is a non-material impairment of the assets located at this mine.

​

Other legal matters:

​

The Company is involved in various other legal proceedings incidental to its operations, but the Company does not believe that decisions adverse to it in any such proceedings, individually or in the aggregate, would have a material effect on its financial position or results of operations.

​

Other commitments:

​

Peruvian Operations

​

Tia Maria:

​

On August 1, 2014, the Company received the final approval of Tia Maria´s Environmental Impact Assessment (“EIA”). On July 8, 2019, the Company received the construction permit for this 120,000 ton annual SX-EW copper greenfield project with a total capital budget of $1,400 million. This permit was obtained after completing an exhausting review process, complying with all established regulatory requirements and addressing all observations raised.

​

The Company´s commitment is to guarantee the population of Islay that the Tia Maria project will not adversely affect other local economic activities. The project will use only desalinated seawater for its operations and, for the transportation of its supplies and copper production, the Company will build an 32 kilometer industrial railway and an access road at a safe distance from the Tambo Valley.

​

The Company reiterates its commitment to delay the construction of the project until it has established, in coordination with the government, a common ground for dialogue with the neighboring communities to address any concerns and

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provide assurances to achieve more social support for the project. Meanwhile, the Company will continue to work for the welfare of the local population.

​

The Company´s social programs in education, healthcare and productive development will continue to improve the quality-of-life and the agricultural and livestock activities in the Tambo Valley, as well as the fishing and tourism in Islay. During the construction and operation phase, hiring local labor will be a priority. The Company has successfully launched in June the free technical training program “Forging the Future”, which will benefit 700 persons in this province in 2019-20. After training, the participants will be eligible to apply for one of the estimated 9,000 jobs (3,600 direct and 5,400 indirect) required during the Tia Maria construction phase. The Company strongly believes that the initiation of construction activities for Tia Maria will generate significant economic opportunities for the Islay province and the Arequipa region.

​

When in operation, the Company expects Tia Maria will generate a significant contribution through mining royalties and taxes from day-one and will directly employ 600 workers and indirectly provide jobs to another 4,200.

​

Tia Maria´s project budget is approximately $1.4 billion, of which $335.7 million has been invested through June 30, 2019. This project will use state-of-the-art SX-EW technology with the highest international environmental standards. SX-EW facilities are the most environmentally friendly in the industry as they do not require a smelting process and therefore, do not release any emissions into the atmosphere.

​

Michiquillay:

​

In June 2018, the Company signed a contract for the acquisition of the Michiquillay copper project in Cajamarca, Peru, at a purchase price of $400 million. Michiquillay is a world class mining project with estimated mineralized material of 1,150 million tons and a copper grade of 0.63%. It is expected to produce 225,000 tons of copper per year (along with by-products of molybdenum, gold and silver) for an initial mine life of more than 25 years.

​

The Company paid $12.5 million at the signing of the contract. The balance of $387.5 million will be paid if the Company decides to develop the project and it is not a present obligation.

​

Toquepala Concentrator Expansion:

​

In April 2015, the construction permit for the Toquepala expansion project was approved by the MINEM. The project budget is $1,320 million, of which $1,291.6 million has been invested through June 30, 2019. When completed, this project is expected to increase Toquepala’s annual copper production to 258,000 tons in 2019, a 52% production increase, when compared to 2018. The construction of the project was completed and the project began production in the fourth quarter of 2018. Full production was reached in the second quarter of 2019.

​

Corporate Social Responsibility:

​

The Company has a corporate social responsibility policy to maintain and promote continuity of its mining operations and obtain the best results. The main objective of this policy is to integrate its operations with the local communities in the areas of influence of its operations by creating a permanent positive relationship with them, in order to develop the optimum social conditions and to promote sustainable development in the area. Accordingly, the Company has made the following commitments:

​

Tacna Region: In connection with the Toquepala concentrator expansion, the Company has committed to fund various social and infrastructure improvement projects in Toquepala’s neighboring communities. The total amount committed for these purposes is S/ 445.0 million (approximately $131.7 million).

​

Moquegua Region: In the Moquegua region, the Company is part of a “development roundtable” in which the local municipal authorities, community representatives and the Company discuss the social needs and the way the Company could contribute to sustainable development in the region. As part of this, the roundtable is discussing the creation of a Moquegua Region Development Fund for which the Company has offered a contribution of S/ 700 million (approximately

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$207.2 million). While final funding is not yet settled, the Company has committed to contribute S/ 108.5 million (approximately $32.1 million) in advance, which is being utilized to fund an educational project and S/ 48.4 million (approximately $14.3 million) for a residual water treatment plant in Ilo, a sea-wall embankment and a fresh water facility at El Algarrobal.

​

In addition, the Company has committed S/ 202.0 million (approximately $59.8 million) for the construction of six infrastructure projects in the Moquegua region under the “social investment for taxes” (obras por impuestos) program which allows the Company to use these amounts as an advance payment of taxes.

​

As the Toquepala expansion project has been completed, the Company considers that these commitments constitute present obligations of the Company and consequently has recorded a liability of $62.4 million in its condensed consolidated financial statements as of June 30, 2019.

​

Power purchase agreements:

​

● | Electroperu S.A.: In June 2014, the Company entered into a power purchase agreement for 120 megawatt (“MW”) with the state power company Electroperu S.A., under which Electroperu S.A. began supplying energy for the Peruvian operations for twenty years starting on April 17, 2017.

​

● | Kallpa Generacion S.A. (“Kallpa”): In July 2014, the Company entered into a power purchase agreement for 120MW with Kallpa, an independent Israeli owned power company, under which Kallpa will supply energy for the Peruvian operations for ten years starting on April 17, 2017 and ending on April 30, 2027. In May 2016, the Company signed an additional power purchase agreement for a maximum of 80MW with Kallpa, under which Kallpa began supplying energy for the Peruvian operations related to the Toquepala Expansion and other minor projects for ten years starting on May 1, 2017 and ending after ten years of commercial operation of the Toquepala Expansion or on April 30, 2029; whichever occurs first.

​

Mexican operations

​

Power purchase agreements:

​

● | MGE: In 2012, the Company signed a power purchase agreement with MGE, an indirect subsidiary of Grupo Mexico, to supply power to some of the Company’s Mexican operations through 2032. For further information, please see Note 7 “Related party transactions”.

​

● | Eolica el Retiro S.A.P.I. de C.V.: In 2013, the Company signed a power purchase agreement with Eolica el Retiro, S.A.P.I de C.V. a windfarm energy producer that is an indirect subsidiary of Grupo Mexico, to supply power to some of the Company´s Mexican operations. For further information, please see Note 7 “Related party transactions”.

​

Corporate operations

​

Commitment for Capital projects:

​

As of June 30, 2019, the Company has committed approximately $118.0 million for the development of its capital investment projects at its operations.

​

Tax contingency matters:

​

Tax contingencies are provided for under ASC 740-10-50-15 Uncertain tax position (see Note 4 “Income taxes”).

​

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NOTE 10 — SEGMENT AND RELATED INFORMATION:

​

Company management views Southern Copper as having three reportable segments and manages it on the basis of these segments. The reportable segments identified by the Company are: the Peruvian operations, the Mexican open-pit operations and the Mexican underground mining operations segment identified as the IMMSA unit.

​

The three reportable segments identified are groups of mines, each of which constitute an operating segment, with similar economic characteristics, type of products, processes and support facilities, similar regulatory environments, similar employee bargaining contracts and similar currency risks. In addition, each mine within the individual group earns revenues from similar type of customers for their products and services and each group incurs expenses independently, including commercial transactions between groups.

​

Financial information is regularly prepared for each of the three segments and the results of the Company’s operations are regularly reported to Senior Management on the segment basis. Senior Management of the Company focus on operating income and on total assets as measures of performance to evaluate different segments and to make decisions to allocate resources to the reported segments. These are common measures in the mining industry.

​

Financial information relating to Southern Copper’s segments is as follows:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, 2019
​ | ​ | (in millions)
​ |  | ​ |  | Mexican |  | ​ | ​ |  | Corporate, other |  | ​ | ​
​ | ​ | Mexican | ​ | IMMSA | ​ | Peruvian | ​ | and | ​ | ​ | ​
​ | ​ | Open-pit | ​ | Unit | ​ | Operations | ​ | eliminations | ​ | Consolidated
Net sales outside of segments | ​ | $ | 954.6 | ​ | $ | 96.9 | ​ | $ | 766.5 | ​ | $ | — | ​ | $ | 1,818.0
Intersegment sales | ​ |  | — | ​ | ​ | 25.4 | ​ |  | — | ​ |  | (25.4) | ​ |  | —
Cost of sales (exclusive of depreciation, amortization and depletion) | ​ |  | 385.2 | ​ |  | 104.5 | ​ |  | 407.5 | ​ |  | (29.9) | ​ |  | 867.3
Selling, general and administrative | ​ |  | 15.7 | ​ |  | 2.2 | ​ |  | 9.2 | ​ |  | 3.8 | ​ |  | 30.9
Depreciation, amortization and depletion | ​ |  | 87.9 | ​ |  | 13.3 | ​ |  | 84.5 | ​ |  | 13.1 | ​ |  | 198.8
Exploration | ​ |  | 0.5 | ​ |  | 2.6 | ​ |  | 4.2 | ​ |  | 0.1 | ​ |  | 7.4
Operating income | ​ | $ | 465.3 | ​ | $ | (0.3) | ​ | $ | 261.1 | ​ | $ | (12.5) | ​ | ​ | 713.6
Less: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest, net | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (79.6)
Other income (expense) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | 23.0
Income taxes | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (251.1)
Equity earnings of affiliate | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (1.5)
Non-controlling interest | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (2.0)
Net income attributable to SCC | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 402.4
Capital investment | ​ | $ | 62.6 | ​ | $ | 22.5 | ​ | $ | 94.3 | ​ | $ | 1.0 | ​ | $ | 180.4
Property and mine development, net | ​ | $ | 4,710.9 | ​ | $ | 468.9 | ​ | $ | 3,870.3 | ​ | $ | 364.5 | ​ | $ | 9,414.6
Total assets | ​ | $ | 8,014.9 | ​ | $ | 842.1 | ​ | $ | 4,953.3 | ​ | $ | 1,534.3 | ​ | $ | 15,344.6

​

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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, 2018
​ | ​ | (in millions)
​ |  | ​ |  | Mexican |  | ​ | ​ |  | Corporate, other |  | ​ | ​
​ | ​ | Mexican | ​ | IMMSA | ​ | Peruvian | ​ | and | ​ | ​
​ | ​ | Open-pit | ​ | Unit | ​ | Operations | ​ | eliminations | ​ | Consolidated
Net sales outside of segments | ​ | $ | 1,061.1 | ​ | $ | 134.3 | ​ | $ | 641.8 | ​ | $ | ​ | ​ | $ | 1,837.2
Intersegment sales | ​ |  | ​ | ​ |  | 18.8 | ​ |  | ​ | ​ |  | (18.8) | ​ |  | —
Cost of sales (exclusive of depreciation, amortization and depletion) | ​ |  | 404.7 | ​ |  | 100.9 | ​ |  | 367.6 | ​ |  | (21.5) | ​ |  | 851.7
Selling, general and administrative | ​ |  | 13.7 | ​ |  | 2.5 | ​ |  | 9.0 | ​ |  | 1.0 | ​ |  | 26.2
Depreciation, amortization and depletion | ​ |  | 81.9 | ​ |  | 11.1 | ​ |  | 57.9 | ​ |  | 11.7 | ​ |  | 162.6
Exploration | ​ |  | 0.5 | ​ |  | 1.2 | ​ |  | 6.9 | ​ |  | 0.5 | ​ |  | 9.1
Operating income | ​ | $ | 560.3 | ​ | $ | 37.4 | ​ | $ | 200.4 | ​ | $ | (10.5) | ​ | ​ | 787.6
Less: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest, net | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (65.8)
Other income (expense) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (3.1)
Income taxes | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (309.1)
Equity earnings of affiliate | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | 1.5
Non-controlling interest | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (1.5)
Net income attributable to SCC | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 409.6
Capital investment | ​ | $ | 79.5 | ​ | $ | 9.8 | ​ | $ | 148.0 | ​ | $ | 16.6 | ​ | $ | 253.9
Property and mine development, net | ​ | $ | 4,490.7 | ​ | $ | 433.2 | ​ | $ | 3,508.9 | ​ | $ | 739.8 | ​ | $ | 9,172.6
Total assets | ​ | $ | 7,659.1 | ​ | $ | 951.2 | ​ | $ | 4,559.6 | ​ | $ | 876.0 | ​ | $ | 14,045.9

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30, 2019
​ | ​ | (in millions)
​ |  | ​ |  | Mexican |  | ​ | ​ |  | Corporate, other |  | ​ | ​
​ | ​ | Mexican | ​ | IMMSA | ​ | Peruvian | ​ | and | ​ | ​ | ​
​ | ​ | Open-pit | ​ | Unit | ​ | Operations | ​ | eliminations | ​ | Consolidated
Net sales outside of segments | ​ | $ | 2,026.7 | ​ | $ | 198.1 | ​ | $ | 1,346.6 | ​ | $ | — | ​ | $ | 3,571.4
Intersegment sales | ​ |  | — | ​ |  | 45.3 | ​ |  | — | ​ |  | (45.3) | ​ |  | —
Cost of sales (exclusive of depreciation, amortization and depletion) | ​ |  | 804.8 | ​ |  | 204.5 | ​ |  | 755.5 | ​ |  | (53.4) | ​ |  | 1,711.4
Selling, general and administrative | ​ |  | 32.0 | ​ |  | 4.0 | ​ |  | 18.8 | ​ |  | 4.6 | ​ |  | 59.4
Depreciation, amortization and depletion | ​ |  | 172.9 | ​ |  | 26.2 | ​ |  | 159.4 | ​ |  | 21.9 | ​ |  | 380.4
Exploration | ​ |  | 0.9 | ​ |  | 4.6 | ​ |  | 7.1 | ​ |  | 0.3 | ​ |  | 12.9
Operating income | ​ | $ | 1,016.1 | ​ | $ | 4.1 | ​ | $ | 405.8 | ​ | $ | (18.7) | ​ | ​ | 1,407.3
Less: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest, net | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (153.7)
Other income (expense) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | 28.3
Income taxes | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (489.0)
Equity earnings of affiliate | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | 0.7
Non-controlling interest | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (3.0)
Net income attributable to SCC | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 790.6
Capital investment | ​ | $ | 121.2 | ​ | $ | 47.5 | ​ | $ | 182.7 | ​ | $ | 2.1 | ​ | $ | 353.5
Property and mine development, net | ​ | $ | 4,710.9 | ​ | $ | 468.9 | ​ | $ | 3,870.3 | ​ | $ | 364.5 | ​ | $ | 9,414.6
Total assets | ​ | $ | 8,014.9 | ​ | $ | 842.1 | ​ | $ | 4,953.3 | ​ | $ | 1,534.3 | ​ | $ | 15,344.6

​

​

​

​

​

​

​

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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30, 2018
​ | ​ | (in millions)
​ |  | ​ |  | Mexican |  | ​ | ​ |  | Corporate, other |  | ​ | ​
​ | ​ | Mexican | ​ | IMMSA | ​ | Peruvian | ​ | and | ​ | ​
​ | ​ | Open-pit | ​ | Unit | ​ | Operations | ​ | eliminations | ​ | Consolidated
Net sales outside of segments | ​ | $ | 2,129.7 | ​ | $ | 264.0 | ​ | $ | 1,284.7 | ​ | $ | ​ | ​ | $ | 3,678.4
Intersegment sales | ​ |  | ​ | ​ |  | 38.4 | ​ |  | ​ | ​ |  | (38.4) | ​ |  | —
Cost of sales (exclusive of depreciation, amortization and depletion) | ​ |  | 816.1 | ​ |  | 196.4 | ​ |  | 757.4 | ​ |  | (41.7) | ​ |  | 1,728.2
Selling, general and administrative | ​ |  | 25.6 | ​ |  | 4.9 | ​ |  | 18.4 | ​ |  | 1.4 | ​ |  | 50.3
Depreciation, amortization and depletion | ​ |  | 174.4 | ​ |  | 22.1 | ​ |  | 109.7 | ​ |  | 18.4 | ​ |  | 324.6
Exploration | ​ |  | 1.1 | ​ |  | 2.5 | ​ |  | 9.5 | ​ |  | 1.2 | ​ |  | 14.3
Operating income | ​ | $ | 1,112.5 | ​ | $ | 76.5 | ​ | $ | 389.7 | ​ | $ | (17.7) | ​ | ​ | 1,561.0
Less: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest, net | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (132.5)
Other income (expense) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (5.5)
Income taxes | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (545.7)
Equity earnings of affiliate | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | 5.6
Non-controlling interest | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | (2.6)
Net income attributable to SCC | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 880.3
Capital investment | ​ | $ | 144.2 | ​ | $ | 22.4 | ​ | $ | 364.3 | ​ | $ | 18.7 | ​ | $ | 549.6
Property and mine development, net | ​ | $ | 4,490.7 | ​ | $ | 433.2 | ​ | $ | 3,508.9 | ​ | $ | 739.8 | ​ | $ | 9,172.6
Total assets | ​ | $ | 7,659.1 | ​ | $ | 951.2 | ​ | $ | 4,559.6 | ​ | $ | 876.0 | ​ | $ | 14,045.9

​

​

​

​

​

NOTE 11 — STOCKHOLDERS’EQUITY:

​

Treasury Stock:

​

Activity in treasury stock in the six-month period ended June 30, 2019 and 2018 is as follows (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018
Southern Copper common shares | ​ | ​ | ​ | ​ | ​ | ​
Balance as of January 1, | ​ | $ | 2,768.3 | ​ | $ | 2,768.7
Purchase of shares | ​ |  | — | ​ |  | —
Used for corporate purposes | ​ |  | (0.4) | ​ |  | (0.4)
Balance as of June 30, | ​ |  | 2,767.9 | ​ |  | 2,768.3
​ | ​ | ​ | ​ | ​ | ​ | ​
Parent Company (Grupo Mexico) common shares | ​ | ​ | ​ | ​ | ​ | ​
Balance as of January 1, | ​ |  | 251.3 | ​ |  | 232.4
Other activity, including dividend, interest and foreign currency transaction effect | ​ |  | 13.2 | ​ |  | 8.4
Balance as of June 30, | ​ |  | 264.5 | ​ |  | 240.8
Treasury stock balance as of June 30, | ​ | $ | 3,032.4 | ​ | $ | 3,009.1

​

​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018
Southern Copper common shares | ​ | ​ | ​ | ​
Directors’ Stock Award Plan | ​ | 14,400 | ​ | 16,000
​ | ​ | ​ | ​ | ​
Parent Company (Grupo Mexico) common shares | ​ | ​ | ​ | ​
Employee stock purchase plan (shares in millions) | ​ | 0.4 | ​ | 1.3

​

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Southern Copper Common Shares:

​

At June 30, 2019 and 2018, there were in treasury 111,537,217 and 111,567,617 SCC’s common shares, respectively.

​

SCC share repurchase program:

​

In 2008, the Company’s Board of Directors (“BOD”) authorized a $500 million share repurchase program that has since been increased by the BOD and is currently authorized to $3 billion. Pursuant to this program, the Company has purchased 119.5 million shares of common stock at a cost of $2.9 billion. These shares are available for general corporate purposes. The Company may purchase additional shares of its common stock from time to time, based on market conditions and other factors. This repurchase program has no expiration date and may be modified or discontinued at any time.

​

The NYSE closing price of SCC common shares at June 30, 2019 was $38.85 and the maximum number of shares that the Company could purchase at that price is 2.1 million shares.

​

As a result of the repurchase of shares of SCC’s common stock, Grupo Mexico’s direct and indirect ownership was 88.9% as of June 30, 2019. There has not been any activity in the SCC share repurchase program since the third quarter of 2016.

​

Directors’ Stock Award Plan:

​

The Company established a stock award compensation plan for certain directors who are not compensated as employees of the Company. Under this plan, participants received 1,200 shares of common stock upon election and 1,200 additional shares following each annual meeting of stockholders thereafter. 600,000 shares of Southern Copper common stock have been reserved for this plan. On April 26, 2018, the Company's Board of Directors and the stockholders approved a five-year extension of the Plan until January 29, 2023 and an increase of the shares award from 1,200 to 1,600. The fair value of the award is measured each year at the date of the grant.

​

Parent Company common shares:

​

At June 30, 2019 and 2018 there were in treasury 96,570,902 and 101,574,318 of Grupo Mexico’s common shares, respectively.

​

Employee Stock Purchase Plan:

​

2015 Plan: In January 2015, the Company offered to eligible employees a new stock purchase plan through a trust that acquires series B shares of Grupo Mexico stock for sale to its employees, and employees of subsidiaries, and certain affiliated companies. The purchase price was established at 38.44 Mexican pesos (approximately $2.63) for the initial subscription, which expires in January 2023. Every two years employees will be able to acquire title to 50% of the shares paid in the previous two years. The employees will pay for shares purchased through monthly payroll deductions over the eight year period of the plan. At the end of the eight year period, the Company will grant the participant a bonus of 1 share for every 10 shares purchased by the employee. Any future subscription will be at the average market price at the date of acquisition or the grant date.

​

If Grupo Mexico pays dividends on shares during the eight year period, the participants will be entitled to receive the dividend in cash for all shares that have been fully purchased and paid as of the date that the dividend is paid. If the participant has only partially paid for shares, the entitled dividends will be used to reduce the remaining liability owed for purchased shares.

​

In the case of voluntary or involuntary resignation/termination of the employee, the Company will pay to the employee the fair market sales price at the date of resignation of the fully paid shares, net of costs and taxes. When the fair market sales value of the shares is higher than the purchase price, the Company will apply a deduction over the amount to be paid to the employee based on a decreasing schedule specified in the plan.

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​

In case of retirement or death of the employee, the Company will render the buyer or his legal beneficiary, the fair market sales value as of the date of retirement or death of the shares effectively paid, net of costs and taxes.

​

The stock based compensation expense for the first six months 2019 and 2018 and the unrecognized compensation expense under this plan were as follows (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018
Stock based compensation expense | ​ | $ | 0.3 | ​ | $ | 0.3
Unrecognized compensation expense | ​ | $ | 2.3 | ​ | $ | 2.9

​

The following table presents the activity of this plan for the six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Unit Weighted Average
​ | ​ | Shares | ​ | Grant Date Fair Value
Outstanding shares at January 1, 2019 |  | 1,840,336 | ​ | $ | 2.63
Granted |  | — | ​ |  | —
Exercised |  | (425,076) | ​ | $ | 2.63
Forfeited |  | — | ​ |  | —
Outstanding shares at June 30, 2019 |  | 1,415,260 | ​ | $ | 2.63
Outstanding shares at January 1, 2018 |  | 2,293,120 | ​ | $ | 2.63
Granted |  | — | ​ |  | —
Exercised |  | (49,320) | ​ | $ | 2.63
Forfeited |  | — | ​ |  | —
Outstanding shares at June 30, 2018 |  | 2,243,800 | ​ | $ | 2.63

​

2018 Plan: In November 2018, the Company offered to eligible employees a new stock purchase plan (the “New Employee Stock Purchase Plan”) through a trust that acquires series B shares of Grupo Mexico stock for sale to its employees, and employees of subsidiaries, and certain affiliated companies. The purchase price was established at 37.89 Mexican pesos (approximately $1.86) for the initial subscription, which expires in October 2026. Every two years employees will be able to acquire title to 50% of the shares paid in the previous two years. The employees will pay for shares purchased through monthly payroll deductions over the eight year period of the plan. At the end of the eight year period, the Company will grant the participant a bonus of 1 share for every 10 shares purchased by the employee. Any future subscription will be at the average market price at the date of acquisition or the grant date.

​

If Grupo Mexico pays dividends on shares during the eight year period, the participants will be entitled to receive the dividend in cash for all shares that have been fully purchased and paid as of the date that the dividend is paid. If the participant has only partially paid for shares, the entitled dividends will be used to reduce the remaining liability owed for purchased shares.

​

In the case of voluntary or involuntary resignation/termination of the employee, the Company will pay to the employee the fair market sales price at the date of resignation of the fully paid shares, net of costs and taxes. When the fair market sales value of the shares is higher than the purchase price, the Company will apply a deduction over the amount to be paid to the employee based on a decreasing schedule specified in the plan.

​

In case of retirement or death of the employee, the Company will render the buyer or his legal beneficiary, the fair market sales value as of the date of retirement or death of the shares effectively paid, net of costs and taxes.

​

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The stock based compensation expense for the first six months ended June 30, 2019 and the unrecognized compensation expense under this plan were as follows (in millions):

​

​ | ​ | ​ | ​
​ |  | 2019
Stock based compensation expense | ​ | $ | 0.2
Unrecognized compensation expense | ​ | $ | 3.4

​

The following table presents the stock award activity of this plan for the six months ended June 30, 2019:

​

​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Unit Weighted Average
​ |  | Shares |  | Grant Date Fair Value
Outstanding shares at January 1, 2019 |  | 2,782,424 |  | 1.86
Granted |  | — |  | —
Exercised |  | — |  | 1.86
Forfeited |  | — | ​ | —
Outstanding shares at June 30, 2019 |  | 2,782,424 | ​ | 1.86

​

Non-controlling interest:

​

The following table presents the non-controlling interest activity for the six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018
Balance as of January 1, |  | $ | 45.4 |  | $ | 41.7
Net earnings | ​ |  | 3.0 | ​ |  | 2.6
Dividend paid | ​ |  | (0.1) | ​ |  | (0.9)
Balance as of June 30, |  | $ | 48.3 |  | $ | 43.4

​

​

NOTE 12 — FAIR VALUE MEASUREMENT:

​

Subtopic 820-10 of ASC “Fair value measurement and disclosures — Overall” establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under Subtopic 820-10 are described below:

​

Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

​

Level 2 - Inputs that are observable, either directly or indirectly, but do not qualify as Level 1 inputs. (i.e., quoted prices for similar assets or liabilities).

​

Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or no market activity).

​

The carrying amounts of certain financial instruments, including cash and cash equivalents, accounts receivable (other than accounts receivable associated with provisionally priced sales) and accounts payable approximate fair value due to their short maturities. Consequently, such financial instruments are not included in the following table that provides

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information about the carrying amounts and estimated fair values of other financial instruments that are not measured at fair value in the condensed consolidated balance sheet as of June 30, 2019 and December 31, 2018 (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | At June 30, 2019 | ​ | At December 31, 2018
​ |  | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value
Liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Long-term debt level 1 | ​ | ​ | 5,211.9 | ​ | ​ | 6,323.5 | ​ | ​ | 5,210.7 | ​ | ​ | 5,540.0
Long-term debt level 2 | ​ | ​ | 749.8 | ​ | ​ | 784.0 | ​ | ​ | 749.4 | ​ | ​ | 761.7
Total long-term debt | ​ | $ | 5,961.7 | ​ | $ | 7,107.5 | ​ | $ | 5,960.1 | ​ | $ | 6,301.7

​

Long-term debt is carried at amortized cost and its estimated fair value is based on quoted market prices classified as Level 1 in the fair value hierarchy except for the cases of the Yankee bonds, the notes due 2020 and the notes due 2022, which qualify as Level 2 in the fair value hierarchy as they are based on quoted prices in markets that are not active.

​

Fair values of assets and liabilities measured at fair value on a recurring basis were calculated as follows as of June 30, 2019 and December 31, 2018 (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value at Measurement Date Using:
​ |  | ​ | ​ |  | ​ | ​ |  | Significant |  | ​ | ​
​ | ​ | Fair Value | ​ | Quoted prices in | ​ | other | ​ | Significant
​ | ​ | as of | ​ | active markets for | ​ | observable | ​ | unobservable
​ | ​ | June 30, | ​ | identical assets | ​ | inputs | ​ | inputs
Description | ​ | 2019 | ​ | (Level 1) | ​ | (Level 2) | ​ | (Level 3)
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Short term investment: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
—Trading securities | ​ | $ | 118.0 | ​ | $ | 118.0 | ​ | $ | — | ​ | $ | —
—Available-for-sale debt securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Corporate bonds | ​ |  | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Asset backed securities | ​ |  | 0.4 | ​ | ​ | — | ​ | ​ | 0.4 | ​ | ​ | —
Mortgage backed securities | ​ |  | 0.4 | ​ | ​ | — | ​ | ​ | 0.4 | ​ | ​ | —
Accounts receivable: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
—Embedded derivatives—Not classified as hedges: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Provisionally priced sales: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Copper | ​ |  | 335.5 | ​ |  | 335.5 | ​ | ​ | — | ​ | ​ | —
Molybdenum | ​ |  | 163.9 | ​ |  | 163.9 | ​ |  | — | ​ | ​ | —
Total | ​ | $ | 618.2 | ​ | $ | 617.4 | ​ | $ | 0.8 | ​ | $ | —

​

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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value at Measurement Date Using:
​ |  | ​ | ​ |  | ​ | ​ |  | Significant |  | ​ | ​
​ | ​ | Fair Value | ​ | Quoted prices in | ​ | other | ​ | Significant
​ | ​ | as of | ​ | active markets for | ​ | observable | ​ | unobservable
​ | ​ | December 31, | ​ | identical assets | ​ | inputs | ​ | inputs
Description | ​ | 2018 | ​ | (Level 1) | ​ | (Level 2) | ​ | (Level 3)
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Short term investment: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
—Trading securities | ​ | $ | 213.1 | ​ | $ | 213.1 | ​ | $ | — | ​ | $ | —
—Available-for-sale debt securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Corporate bonds | ​ |  | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Asset backed securities | ​ |  | 0.4 | ​ | ​ | — | ​ |  | 0.4 | ​ | ​ | —
Mortgage backed securities | ​ |  | 0.3 | ​ | ​ | — | ​ | ​ | 0.3 | ​ | ​ | —
Accounts receivable: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
—Embedded derivatives-Not classified as hedges: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Provisionally priced sales: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Copper | ​ |  | 274.3 | ​ |  | 274.3 | ​ | ​ | — | ​ | ​ | —
Molybdenum | ​ |  | 107.4 | ​ |  | 107.4 | ​ |  | — | ​ | ​ | —
Total | ​ | $ | 595.5 | ​ | $ | 594.8 | ​ | $ | 0.7 | ​ | $ | —

​

The Company’s short-term trading securities investments are classified as Level 1 because they are valued using quoted prices of the same securities as they consist of bonds issued by public companies and publicly traded. The Company’s short-term available-for-sale investments are classified as Level 2 because they are valued using quoted prices for similar investments.

​

The Company’s accounts receivables associated with provisionally priced copper sales are valued using quoted market prices based on the forward price on the LME or on the COMEX. Such value is classified within Level 1 of the fair value hierarchy. Molybdenum prices are established by reference to the publication Platt’s Metals Week and are considered Level 1 in the fair value hierarchy.

​

NOTE 13 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

​

ADOPTION OF LEASES STANDARD

​

The Company has adopted FASB ASC 842, Leases, effective January 1, 2019, applying the transition approach which permits it to recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. Consequently, the financial statements for prior periods were not modified. At the date of adoption, the Company assessed that the adoption of the new leases standard has resulted in the recognition of right of use assets and lease obligations of approximately $1,115.9 million, which was recorded in the Company’s balance sheet as of January 1, 2019.

​

During 2018, the Company developed an implementation plan with a cross-functional team, which performed a completeness assessment over the lease contracts of the Company, established new policies, procedures and internal controls related to the new standard. As result of its analysis, the Company has concluded that all of its existing lease contracts at January 1, 2019, have been classified as operating lease contracts.

​

Additionally, the Company has elected the short-term lease recognition exemption (short-term lease practical expedient) by class of underlying asset (which results in off-balance-sheet accounting for the lease). The new standard had a material impact on the Company’s balance sheet, but did not have a material impact on its income statement and had no impact on cash flows.

​

SIGNIFICANT ACCOUNTING POLICIES

​

With the exception of the change in the Company's leases policy as a result of the adoption of ASC 842, as described above, there have been no new or material changes to the significant accounting policies discussed in the Company’s

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Annual Report on Form 10-K for the year ended December 31, 2018, that are of significance, or potential significance to the Company.

​

Leases -

​

The Company adopted FASB ASC 842, Leases, effective January 1, 2019. The Company determined if a contract is or contained a lease at its inception. The Company evaluated if a contract gave the right to obtain substantially all of the economic benefits from use of an identified asset and the right to direct the use of the asset, in order to determine if a contract contained a lease. All of the Company’s existing lease contracts are operating lease contracts. For these leases, the Company recognized right-of-use assets and the corresponding operating lease liabilities on its consolidated balance sheet. Right-of-use assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent an obligation by the Company to make lease payments which arise from the lease. Lease right-of-use assets and liabilities are recognized at the inception date based on the present value of lease payments over the lease term. As the Company’s lease contracts do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at the inception date in order to determine the present value of lease payments. Lease expense for lease payments is recognized on a straight-line basis over the lease term, in the cost of sales and operating expenses.

​

NOTE 14 — LEASES:

​

The Company has operating leases for power generating facilities, vehicles and properties. Leases with an initial term of 12 months or less, underlying asset value of $10,000 (US dollars) or less and total nominal contract value of $100,000 (US dollars) or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term. Some of the Company’s leases include both lease and non-lease components which are accounted for separately. The Company’s leases have remaining lease terms of two years to 14 years, and do not include options to extend the leases. The Company’s lease agreements do not contain options to purchase the leased assets or to terminate the leases before the expiration date. In addition, the Company’s lease contracts do not have any material residual value guarantees or material restrictive covenants. As none of the Company’s leases provides an implicit rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments.

The weighted average remaining lease term for the Company’s leases is 10 years, and the weighted average discount rate for these leases is 3.56%.

​

The operating lease expense recognized in the six months ended June 30, 2019 was classified as follows (in millions):

​

​ | ​ | ​ | ​
Classification |  | 2019
Cost of sales (exclusive of depreciation, amortization and depletion) |  | $ | 57.6
Selling, general and administrative | ​ |  | 0.1
Exploration | ​ |  | 0.1
Total lease expense |  | $ | 57.8

​

The Company’s short-term lease costs for the six months ended June 30, 2019 was $0.3 million.

​

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Maturities of lease liabilities were as follows:

​

​ | ​ | ​ | ​
​ | ​ | Lease liabilities
Year |  | (in millions)
2019 |  | $ | 57.8
2020 | ​ |  | 115.4
2021 | ​ |  | 115.3
2022 | ​ |  | 112.1
2023 | ​ |  | 111.1
After 2023 | ​ |  | 929.1
Total lease payments |  | $ | 1,440.8
Less: interest on lease liabilities | ​ |  | (364.5)
Present value of lease payments |  | $ | 1,076.3

​

​

NOTE 15 — SUBSEQUENT EVENTS:

​

Dividends:

​

On July 18, 2019, the Board of Directors authorized a dividend of $0.40 per share payable on August 22, 2019 to shareholders of record at the close of business on August 08, 2019.

​

Tia Maria construction license:

​

On July 8, 2019, the Company received the construction license for the Tia Maria project. Please see further disclosure on Note 9 – Commitments and Contingencies – Other Commitments – Peruvian Operations.

​

Guaymas sulfuric acid spill:

​

On July 9, 2019, at the Company´s Marine Terminal in Guaymas, Sonora, there was an incident that caused the discharge of approximately three cubic meters of sulfuric acid into the sea in the industrial port area.

​

The Guaymas bay has an estimated water volume of 340 million cubic meters, the spill upon entering in contact with the sea’s alkaline conditions, the discharge was quickly diluted, the sulfuric acid was naturally and immediately neutralized. As a result the discharge was considered harmless, and it was found that neither the flora nor fauna of the port area were affected, according to the report from the Ministry of Navy.

​

On July 10, 2019, the Mexican Environmental Protection Agency (“PROFEPA”) made a first inspection of the area, concluding that the Company executed all the correct procedures in order to contain the discharge, and no reference was made to the existence of negative impacts on the environment resulting from the incident.

​

On Friday, July 19, 2019, PROFEPA revisited the facilities to carry out a second inspection, declaring a partial temporary shutdown related only to the storage process and transportation of sulfuric acid at the terminal, arguing the absence of an authorization of environmental impact. It is important to note that these facilities have been in operation since 1979, previous to the 1988 Mexican General Law of Ecological Balance and the Protection of the Environment. Therefore, these licenses are not a requirement for companies that have being operating before the mentioned law. In addition, PROFEPA’s awarded in 2009 a certification of “Clean Industry and Environmental Quality” for such facility; which was subsequently renewed four times (for periods of two years each).

​

The Company does not know the reasons or causes for this partial and temporary closure, but it will continue contributing with the environmental authorities with all the necessary elements in order to provide certainty with respect to the operation, in strict adherence to environmental regulations. The Company expects the environmental authorities to revoke the partial temporary shutdown, once they clarify their concerns. At this point, the Company does not expect any impact on its operations, as this terminal has no scheduled shipments until late August.

​

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Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

​

The following discussion provides information that management believes is relevant to an assessment and understanding of the condensed consolidated financial condition and results of operations of Southern Copper Corporation and its subsidiaries (collectively, “SCC”, “the Company”, “our”, and “we”). This item should be read in conjunction with our interim unaudited Condensed Consolidated Financial Statements and the notes thereto included in this quarterly report. Additionally, the following discussion and analysis should be read in conjunction with the Management Discussion and Analysis of Financial Condition and Results of Operations and the Consolidated Financial Statements included in Part II of our annual report on Form 10-K for the year ended December 31, 2018.

​

EXECUTIVE OVERVIEW

​

Business: Our business is primarily the production and sale of copper. In the process of producing copper, a number of valuable metallurgical by-products are recovered, which we also produce and sell. Market forces outside of our control largely determine the sale prices for our products. Our management, therefore, focuses on value creation through copper production, cost control, production enhancement and maintaining a prudent capital structure to remain profitable. We endeavor to achieve these goals through capital spending programs, exploration efforts and cost reduction programs. Our aim is to remain profitable during periods of low copper prices and to maximize financial performance in periods of high copper prices.

​

We are one of the world’s largest copper mining companies in terms of production and sales with our principal operations in Peru and Mexico. We also have active ongoing exploration programs in Chile, Argentina and Ecuador. In addition to copper, we produce significant amounts of other metals, either as a by-product of the copper process or in a number of dedicated mining facilities in Mexico.

​

Outlook: Various key factors will affect our outcome. These include, but are not limited to, some of the following:

​

● | Changes in copper, molybdenum, silver and zinc prices: In the first six months of 2019, the average LME and COMEX copper prices were $2.80 per pound, about 10.8% and 10.3% lower than in the first six months of 2018, respectively. During the six months of 2019 per pound LME spot copper prices ranged from $2.61 to $2.98. Average molybdenum prices in the first six months of 2019 increased 0.5% and zinc prices decreased by 16.2%, when compared to the average prices in the first six months of 2018. Average silver prices decreased 8.5% in the first six months of 2019 when compared to the same period of 2018.

​

● | Sales structure: In the first half of 2019, approximately 80.2% of our revenue came from the sale of copper, 7.6% from molybdenum, 4.3% from zinc, 4.1% from silver and 3.8% from various other products, including gold, sulfuric acid and other materials.

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● | Copper: During the second quarter of 2019 the LME copper price decreased, from an average of $3.12 per pound in the second quarter of 2018 to $2.77 (-11.2%). Even though we see a good physical market for copper, we believe the fall in prices of the secons half of 2018 reflected the sentiment of a possible slowdown of the World economy, concerns with Brexit and an escalation of trade protectionism between the United States and China. We expect a recovery in copper prices in the coming months. We are adjusting our view of a refined copper demand growth to 2.0% in 2019, driven by higher consumption in the U.S. and Asia, with China, we believe, demanding 3.5% more refined copper than in 2018.

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On the supply side, production losses have reinforced our view of a deficit in the refined copper market as a result of labor strikes, heavy rains in Chile and Peru and technical problems. Consequently, we now expect a deficit of approximately 350,000 tons (1.5% of world supply), for this year. We expect this market deficit to put pressure on copper prices during the second half of 2019.

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● | Molybdenum: Represented 8.5% of our sales in the second quarter of 2019. During the second quarter of 2019, the average molybdenum price increased by 3.7% when compared to the first quarter of 2019.

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Molybdenum is mainly used in the production of special alloys for stainless steel that require significant hardness and corrosion and heat resistance. New uses for this metal are in lubricants, in sulfur filtering of heavy oils and shale gas production.

​

● | Zinc: Represented 4.2% of our sales in the second quarter of 2019. We are aware that the performance of zinc prices over the last 12 months has been decreasing, mainly affected by the trade war between US-China, but this effect will be offset in the future by a reduction in supply due to the closure of different zinc mines during recent years.

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● | Silver: Represented 3.8% of our sales in the second quarter of 2019 and it is currently our third by-product. We believe that silver prices will have support due to its industrial uses as well as its linkage to gold as a value shelter in times of economic uncertainty.

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● | Production: In the fourth quarter of 2018, we began operations at the new Toquepala concentrator which produced 8,630 tons of copper in 2018. For 2019 we expect to produce 993,300 tons of copper, a 12.4% increase from the 883,689 tons we produced in 2018.

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We also expect to produce 20.1 million ounces of silver, about 16% higher than the 2018 production of 17.3 million ounces, mainly resulting from the contribution of the San Martin, Santa Barbara and Toquepala mines. In 2019, we expect to produce 85,900 tons of zinc from our mines, up 21% from 2018 production of 70,778 tons, as a result of the recovery of production at the San Martin mine. Additionally, we expect to produce 24,800 tons of molybdenum, an increase of 13% due to the significant contribution of the molybdenum plant at the new Toquepala concentrator.

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●Cost: Our operating costs and expenses for the six months of 2019 and 2018 were as follows:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ | ​ |  | Variance |
​ | ​ | 2019 |  | 2018 |  | Value |  | % | ​
Operating costs and expenses (in millions) | ​ | $ | 2,164.1 | ​ | $ | 2,117.4 | ​ | $ | 46.7 | ​ | % | 2.2 | ​

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The increase was mainly due to higher depreciation, amortization and depletion at our Peruvian operations segment, partially offset by lower cost of sales at our Peruvian operations and Mexican open pit operations.

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● | Capital Investments: In the first six months of 2019 we spent $353.5 million on capital investments, 35.7% lower than in the first six months of 2018, and represented 45.0% of net income. Our growth program to develop the full production potential of our Company is underway. We are currently developing a new organic growth plan to increase our copper volume production to 1.5 million tons by 2025 with the development of new projects.

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KEY MATTERS:

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We discuss below several matters that we believe are important to understand our results of operations and financial condition. These matters include, (i) our earnings, (ii) our production, (iii) our “operating cash costs” as a measure of our performance, (iv) metal prices, (v) business segments, (vi) the effect of inflation and other local currency issues, and (vii) our capital investment and exploration program.

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Earnings: The table below highlights key financial and operational data of our Company for the three and six months ended June 30, 2019 and 2018 (in millions, except copper price, percentages and per share amounts):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | Three months ended June 30, | ​ | ​ | Six months ended June 30, |
​ |  | 2019 |  | 2018 |  | Variance | ​ | % Change |  |  | 2019 |  | 2018 |  | Variance | ​ | % Change |  | ​
Copper price LME | ​ | ​ | 2.77 | ​ | ​ | 3.12 | ​ | ​ | (0.35) |  | (11.2) | % | ​ | ​ | 2.80 | ​ | ​ | 3.14 | ​ | ​ | (0.34) |  | (10.8) | % | ​
Pounds of copper sold | ​ | ​ | 536.8 | ​ | ​ | 480.4 | ​ | ​ | 56.4 |  | 11.7 | % | ​ | ​ | 1,038.2 | ​ | ​ | 949.5 | ​ | ​ | 88.7 |  | 9.3 | % | ​
Net sales | ​ | $ | 1,818.0 | ​ | $ | 1,837.2 | ​ | $ | (19.2) |  | (1.0) | % | ​ | $ | 3,571.4 | ​ | $ | 3,678.4 | ​ | $ | (107.0) |  | (2.9) | % | ​
Operating income | ​ | $ | 713.6 | ​ | $ | 787.6 | ​ | $ | (74.0) |  | (9.4) | % | ​ | $ | 1,407.3 | ​ | $ | 1,561.0 | ​ | $ | (153.7) |  | (9.8) | % | ​
Net income attributable to SCC | ​ | $ | 402.4 | ​ | $ | 409.6 | ​ | $ | (6.7) | ​ | (1.6) | % | ​ | $ | 790.6 | ​ | $ | 880.3 | ​ | $ | (89.7) | ​ | (10.2) | % | ​
Earnings per share | ​ | $ | 0.52 | ​ | $ | 0.53 | ​ | $ | (0.01) | ​ | (1.9) | % | ​ | $ | 1.02 | ​ | $ | 1.14 | ​ | $ | (0.12) | ​ | (10.5) | % | ​
Dividends per share | ​ | $ | 0.40 | ​ | $ | 0.30 | ​ | $ | 0.10 | ​ | 33.3 | % | ​ | $ | 0.80 | ​ | $ | 0.60 | ​ | $ | 0.20 | ​ | 33.3 | % | ​

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Net sales in the first six months of 2019 were 2.9% lower than in the first six months of 2018 mainly due to lower metal prices, particularly copper (-10.8%, LME). Nevertheless, copper sales volume increased (+9.3%) mainly due to the additional production of our new Toquepala concentrator. By-product sales volumes of silver (+5.3%) and molybdenum (+11.1%) also increased while zinc reduced (-3.8%).

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Net income in the first six months of 2019 was 3.5% lower than in the first six months of 2018, mainly due to lower copper prices during this period.

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Production: The table below highlights our mine production data for the three and six months ended June 30, 2019 and 2018:

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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, | ​ | ​ | Six months ended June 30, | ​ | ​
​ |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ | ​
Copper (in million pounds) |  | 565.2 |  | 484.9 |  | 80.3 |  | 16.5 | % |  | 1,069.2 |  | 936.5 |  | 132.7 |  | 14.2 | % |
Molybdenum (in million pounds) |  | 14.8 |  | 11.9 |  | 2.9 |  | 24.7 | % |  | 26.2 |  | 23.3 |  | 2.9 |  | 12.3 | % |
Silver (in million ounces) |  | 4.9 |  | 4.6 |  | 0.3 |  | 5.3 | % |  | 9.2 |  | 8.8 |  | 0.4 |  | 5.0 | % |
Zinc (in million pounds) |  | 39.1 |  | 39.6 |  | (0.5) |  | (1.3) | % |  | 80.0 |  | 78.7 |  | 1.3 |  | 1.6 | % |

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The table below highlights our copper production data for the three and six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, | ​ | ​ | Six Months Ended June 30, | ​ | ​
Copper (in million pounds): |  | 2019 |  | 2018 |  | Variance |  | % Change |  | ​ | 2019 |  | 2018 |  | Variance |  | % Change | ​ | ​
Toquepala |  | 151.0 |  | 90.0 |  | 61.0 |  | 67.6 | % | ​ | 267.5 |  | 173.8 |  | 93.7 |  | 53.8 | % |
Cuajone |  | 86.3 |  | 93.1 |  | (6.8) |  | (7.3) | % | ​ | 158.7 |  | 161.3 |  | (2.6) |  | (1.6) | % |
La Caridad |  | 73.8 |  | 73.4 |  | 0.4 |  | 0.6 | % | ​ | 145.5 |  | 144.7 |  | 0.8 |  | 0.6 | % |
Buenavista |  | 250.3 |  | 224.7 |  | 25.6 |  | 11.4 | % | ​ | 489.9 |  | 449.8 |  | 40.1 |  | 8.9 | % |
IMMSA |  | 3.8 |  | 3.7 |  | 0.1 |  | 0.5 | % | ​ | 7.6 |  | 6.9 |  | 0.7 |  | 10.8 | % |
Total mined copper |  | 565.2 |  | 484.9 |  | 80.3 |  | 16.5 | % | ​ | 1,069.2 |  | 936.5 |  | 132.8 |  | 14.2 | % |

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Second quarter: Mined copper production in the second quarter of 2019 increased by 16.5% to 565.2 million pounds compared to 484.9 million pounds in the second quarter of 2018. This increase was due to:

● | Higher production at our Toquepala mine which benefited from the successful ramping up of the new concentrator.

● | Higher production at the Buenavista mine due to operating improvements at our new Buenavista’s plants, SX-EW and concentrator. This was partially offset by

● | Lower production at the Cuajone mine due to lower grades and recoveries.

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Molybdenum production increased 24.7% in the second quarter of 2019 when compared with the second quarter of 2018 as result of higher production at all our mines, particularly Toquepala (+94.5%) as result of the new molybdenum plant that started production in April 2019.

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Silver mine production increased by 5.3% in the second quarter of 2019 due to higher production at Toquepala mine; this was partially offset by lower production at our Cuajone, La Caridad and IMMSA operations.

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Zinc production decreased slightly 1.3% in the second quarter of 2019, mainly due to lower production at the Charcas and Santa Eulalia mines.

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Six months: Mined copper production in the first six months of 2019 increased 14.2% to 1,069.2 million pounds from 936.5 million pounds in the same period of 2018. This increase was due to:

● | Higher production at the Toquepala mine which benefited from the successful ramping up of the new concentrator.

● | Higher production at the Buenavista mine due to operating improvements at our new Buenavista’s plants, SX-EW and concentrator.

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Molybdenum production increased 12.3% in the first six months of 2019 compared to the same period of 2018, as a result of higher production at all our mines, especially at our Buenavista mine.

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Silver mine production increased 5.0% mainly as result of higher production at the Toquepala mine due to the expansion project. This was partially offset by lower production at our Cuajone and La Caridad mines.

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Zinc production increased 1.6% in the first six months of 2019 due to higher production at our Santa Barbara mine because of higher recoveries. This was partially offset by lower production at the Charcas mine due to lower grades.

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Operating Cash Costs: An overall benchmark used by us and a common industry metric to measure performance is operating cash costs per pound of copper produced. Operating cash cost is a non-GAAP measure that does not have a standardized meaning and may not be comparable to similarly titled measures provided by other companies. This non-GAAP information should not be considered in isolation or as substitute for measures of performance determined in accordance with GAAP. A reconciliation of our operating cash cost per pound of copper produced to the cost of sales (exclusive of depreciation, amortization and depletion) as presented in the condensed consolidated statement of earnings is presented under the subheading, “Non-GAAP Information Reconciliation” on page 56. We disclose operating cash cost per pound of copper produced, both before and net of by-product revenues.

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We define operating cash cost per pound of copper produced before by-product revenues as cost of sales (exclusive of depreciation, amortization and depletion), plus selling, general and administrative charges, treatment and refining charges net of sales premiums; less the cost of purchased concentrates, workers’ participation and other miscellaneous charges, including royalty charges, and the change in inventory levels; divided by total pounds of copper produced by our own mines.

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In our calculation of operating cash cost per pound of copper produced, we exclude depreciation, amortization and depletion, which are considered non-cash expenses. Exploration is considered a discretionary expenditure and is also excluded. Workers’ participation provisions are determined on the basis of pre-tax earnings and are also excluded. Additionally excluded from operating cash costs are items of a non-recurring nature and the mining royalty charge as it is based on various calculations of taxable income, depending on which jurisdiction, Peru or Mexico, is imposing the charge. We believe these adjustments will allow our management and stakeholders to see a presentation of our controllable cash cost, which we consider is one of the lowest of copper producing companies of similar size.

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We define operating cash cost per pound of copper produced net of by-product revenues as operating cash cost per pound of copper produced, as defined in the previous paragraph, less by-product revenues and net revenue (loss) on sale of metal purchased from third parties.

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In our calculation of operating cash cost per pound of copper produced, net of by-product revenues, we credit against our costs the revenues from the sale of all our by-products, including, molybdenum, zinc, silver, gold, etc. and the net revenue (loss) on sale of metals purchased from third parties. We disclose this measure including the by-product revenues in this way because we consider our principal business to be the production and sale of copper. As part of our copper production process, much of our by-products are recovered. These by-products, as well as the processing of copper purchased from third parties, are a supplemental part of our production process and their sales value contribute to cover part of our incurred fixed costs. We believe that our Company is viewed by the investment community as a copper company, and is valued, in large part, by the investment community’s view of the copper market and our ability to produce copper at a reasonable cost.

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We believe that both of these measures are useful tools for our management and our stakeholders. Our cash costs before by-product revenues allow us to monitor our cost structure and address with operating management areas of concern. The measure operating cash cost per pound of copper produced net of by-product revenues is a common measure used in the copper industry and is a useful management tool that allows us to track our performance and better allocate our resources. This measure is also used in our investment project evaluation process to determine a project’s potential contribution to our operations, its competitiveness and its relative strength in different price scenarios. The expected contribution of by-products is generally a significant factor used by the copper industry in determining whether to move forward with the development of a new mining project. As the price of our by-product commodities can have significant fluctuations from period to period, the value of its contribution to our costs can be volatile.

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Our operating cash cost per pound of copper produced, before and net of by-product revenues, is presented in the table below for the three and six months ended June 30, 2019 and 2018:

​

Operating cash cost per pound of copper produced (1)

(In millions, except cost per pound and percentages)

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Three Months Ended June 30, |  | ​ | ​ | Six Months Ended June 30, |  | ​
​ |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ | ​
Total operating cash cost before by‑product revenues | ​ | $ | 796.7 | ​ | $ | 694.2 | ​ | $ | 102.5 |  | 14.8 | % | ​ | $ | 1,546.1 | ​ | $ | 1,382.5 | ​ | $ | 163.6 |  | 11.8 | % | ​
Total by‑product revenues | ​ | $ | (352.5) | ​ | $ | (308.2) | ​ | $ | (44.3) |  | 14.4 | % | ​ | $ | (658.2) | ​ | $ | (651.2) | ​ | $ | (7.0) |  | 1.1 | % | ​
Total operating cash cost net of by‑product revenues | ​ | $ | 444.2 | ​ | $ | 386.0 | ​ | $ | 58.2 |  | 15.1 | % | ​ | $ | 887.9 | ​ | $ | 731.3 | ​ | $ | 156.6 |  | 21.4 | % | ​
Total pounds of copper produced(2) | ​ |  | 551.2 | ​ |  | 469.6 | ​ |  | 81.6 |  | 17.4 | % | ​ |  | 1,042.3 | ​ |  | 907.4 | ​ |  | 134.9 |  | 14.9 | % | ​
Operating cash cost per pound before by‑product revenues | ​ | $ | 1.45 | ​ | $ | 1.48 | ​ | $ | (0.03) |  | (2.0) | % | ​ | $ | 1.48 | ​ | $ | 1.52 | ​ | $ | (0.04) |  | (2.6) | % | ​
By‑products per pound revenues | ​ | $ | (0.64) | ​ | $ | (0.66) | ​ | $ | 0.02 |  | (3.0) | % | ​ | $ | (0.63) | ​ | $ | (0.72) | ​ | $ | 0.09 |  | (12.5) | % | ​
Operating cash cost per pound net of by‑product revenues | ​ | $ | 0.81 | ​ | $ | 0.82 | ​ | $ | (0.01) |  | (1.2) | % | ​ | $ | 0.85 | ​ | $ | 0.81 | ​ | $ | 0.04 |  | 4.9 | % | ​

(1) | These are non-GAAP measures. Please see page 56 for reconciliation to GAAP measure.

(2) | Net of metallurgical losses.

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As seen in the table above, our per pound cash cost before by-product revenues in the second quarter of 2019 and for the six months was three cents and four cents, respectively, lower than in the same period of 2018. This decrease in both periods was the result of the unit cost effect of 17.4% and 14.9% higher production, respectively.

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In addition, our per pound cash cost for the three months ended June 30, 2019 when calculated net of by-product revenues decreased slightly 1.2% compared with the second quarter of 2018. Meanwhile, our cash cost per pound when calculated net of by-product revenues for the six months ended June 30, 2019 was 4.9% higher than in the same period of 2018 due to a 12.5% decrease in the by-product per pound revenues.

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Metal Prices: The profitability of our operations is dependent on, and our financial performance is significantly affected by, the international market prices for the products we produce, especially for copper, molybdenum, zinc and silver.

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We are subject to market risks arising from the volatility of copper and other metal prices. For the remaining six months of 2019, assuming that expected metal production and sales are achieved, that tax rates are unchanged and giving no effect to potential hedging programs, metal price sensitivity factors would indicate the following change in estimated net income attributable to SCC resulting from metal price changes:

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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Copper |  | Molybdenum |  | Zinc |  | Silver
Change in metal prices (per pound except silver—per ounce) | ​ | $ | 0.10 | ​ | $ | 1.00 | ​ | $ | 0.10 | ​ | $ | 1.00
Change in net earnings (in millions) | ​ | $ | 64.7 | ​ | $ | 17.3 | ​ | $ | 7.0 | ​ | $ | 6.5

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Business Segments: We view our Company as having three reportable segments and manage it on the basis of these segments. These segments are (1) our Peruvian operations, (2) our Mexican open-pit operations and (3) our Mexican underground operations, known as our IMMSA unit. Our Peruvian operations include the Toquepala and Cuajone mine complexes and the smelting and refining plants, industrial railroad and port facilities that service both mines. The Peruvian operations produce copper, with significant by-product production of molybdenum, silver and other material. Our Mexican open-pit operations include La Caridad and Buenavista mine complexes, the smelting and refining plants

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and support facilities, which service both mines. The Mexican open pit operations produce copper, with significant by-product production of molybdenum, silver and other material. Our IMMSA unit includes five underground mines that produce zinc, lead, copper, silver and gold, a coal mine which produces coal and coke, and several industrial processing facilities for zinc, copper and silver.

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Segment information is included in our review of “Results of Operations” in this item and also in Note 10 “Segment and Related Information” of our condensed consolidated financial statements.

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Inflation and Exchange Rate Effect of the Peruvian Sol and the Mexican Peso: Our functional currency is the U.S. dollar and our revenues are primarily denominated in U.S. dollars. Significant portions of our operating costs are denominated in Peruvian sol and Mexican pesos. Accordingly, when inflation and currency devaluation/appreciation of the Peruvian currency and Mexican currency occur, our operating results can be affected. In recent years, we do believe such changes have not had a material effect on our results and financial position. Please see Item 3. “Quantitative and Qualitative Disclosures about Market Risk” for more detailed information.

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Capital Investment Programs: We made capital investments of $353.5 million in the six months ended June 30, 2019, compared with $549.6 million in the same period of 2018. In general, the capital investments and investment projects described below are intended to increase production, decrease costs or address social and environmental commitments

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Set forth below are descriptions of some of our current expected capital investment programs. We expect to meet the cash requirements for these projects from cash on hand, internally generated funds and from additional external financing, including funding received in April 2015. All capital spending plans will continue to be reviewed and adjusted to respond to changes in the economy or market conditions.

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Projects in Mexico:

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Buenavista Zinc - Sonora: This project is located within the Buenavista facility and includes the development of a new concentrator to produce approximately 80,000 tons of zinc per year which will allow us to double our current zinc production capacity. Also, the project will produce 20,000 tons of additional copper per year. We have completed the basic engineering. Environmental studies are in process. We estimate an investment of $413 million for this project and expect to initiate operations in the fourth quarter of 2021. This project will provide 490 direct jobs and 1,470 indirect jobs.

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Pilares - Sonora: This project, located six kilometers from La Caridad, will be developed as an open-pit mine operation. The ore will be transported from the pit to the primary crushers of the La Caridad copper concentrator through a new 25-meter wide off-road facility for mining trucks, and will significantly improve the over-all mineral ore grade (combining the 0.78% expected from Pilares with the 0.34% from La Caridad). Environmental permits have been obtained and additional land is being acquired. An investment of $159 million is estimated to produce 35,000 tons of copper in concentrates per year. We expect this project to start producing in the second half of 2020.

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The San Martin mine recovery program. We have continued working on the San Martin mine to initiate operations shortly. Currently, the mine has 200,000 tons of ore and the concentrator has initiated production. For 2019, we expect an annual production of 14,600 tons of zinc, 2.4 million ounces of silver and 5,000 tons of copper. The budget of the recovery program is $87.0 million. At June 30, 2019 the program had a total expense of $50.1 million.

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Projects in Peru:

​

Our main capital projects in Peru are the following:

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Toquepala Expansion Project - Tacna: This $1,320 million project includes a new state-of-the-art concentrator which will increase Toquepala’s annual copper production to 258,000 tons in 2019, a 52% production increase, when compared to 2018.

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As of June 30, 2019, we have invested $1,291.6 million in this expansion. Construction of the project was completed and production began in the fourth quarter of 2018. Full production was reached in the second quarter of 2019.

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The project to improve the crushing process at Toquepala with the installation of a High Pressure Grinding Roll (HPGR) system, has as its main objective, to ensure that our existing concentrator will operate at its maximum annual production capacity of 117,000 tons of copper while reducing operating costs through ore crushing efficiencies, even with an increase of the ore material hardness index. The budget for this project is $52 million and as of June 30, 2019, we have invested $50.0 million. We are in the administrative close-out process for this project, which was added to operations during the fourth quarter of 2018.

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Cuajone tailing thickeners project - Moquegua: This project will replace two of the three existing thickeners at the concentrator with a new hi-rate thickener. The purpose is to streamline the concentrator flotation process and improve water recovery efficiency, increasing the tailings solids content from 54% to 61%, thereby reducing fresh water consumption and replacing it with recovered water. Equipment assembly is completed and we are in the commissioning process. As of June 30, 2019, we have invested $31.1 million out of the approved budget of $31.3 million in this project. During the commissioning process, a problem in the design of the thickener was detected and we have already solved it. We expect the project to be completed in the third quarter of 2019.

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Tailings disposal at Quebrada Honda - Moquegua: This project increases the height of the existing Quebrada Honda dam to impound future tailings from the Toquepala and Cuajone mills and will extend the expected life of this tailings facility by 25 years. The first stage and construction of the drainage system for the lateral dam is finished. We finished the second stage with the installation of a new cyclone battery station that allows us to place more slurry at the dams. We are working to improve several operational processes of this facility. The project has a total budgeted cost of $116 million. We have invested $104 million through June 30, 2019 and expect the project to be completed in the first quarter of 2020.

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Potential projects

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We have a number of other projects that we may develop in the future. We evaluate new projects on the basis of our long-term corporate objectives, expected return on investment, environmental concerns, required investment and estimated production, among other considerations. All capital spending plans will continue to be reviewed and adjusted to respond to changes in the economy or market conditions.

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El Arco - Baja California: This is a world class copper deposit located in the central part of the Baja California peninsula, with ore reserves of over 2.7 billion tons with an ore grade of 0.399% and 0.11 grams of gold per ton. This project, includes an open-pit mine combining concentrator and SX-EW operations with an estimated production of 190,000 tons of copper and 105,000 ounces of gold annually. Between July 2015 and February 2016, we conducted a drilling program of 20,170 meters in order to further define the deposit at lower depths of between 300 and 600 meters.

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El Pilar - Sonora: This is a fully permitted, low capital intensity copper development project strategically located in Sonora, Mexico, approximately 45 kilometers from our Buenavista mine. Its copper oxide mineralization contains estimated proven and probable reserves of 325 million tons of ore with an average copper grade of 0.287%. El Pilar will operate as a conventional open-pit mine and copper cathodes will be produced using the highly cost efficient and environmentally friendly SX-EW technology. Average annual production is currently estimated at 35,000 tons of copper cathodes over an initial 13-year mine life. On a preliminary basis, we estimate a development investment of approximately $310 million. During 2018 we continued with the metallurgical testing program, as well as with social development work with local communities. We are also concluding a preliminary economic study of the project.

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Tia Maria - Arequipa: On July 8, 2019, we received the construction permit for this 120,000 ton annual SX-EW copper greenfield project with a total capital budget of $1,400 million. This permit was obtained after completing an exhausting review process, complying with all established regulatory requirements and addressing all observations raised.

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We guarantee to the population of Islay that the Tia Maria project will not adversely affect other local economic activities because we will use desalinated seawater for our operations and, for the transport of our supplies and copper

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production, we will build an 32 kilometer industrial railway and an access road at a safe distance from the Tambo Valley.

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We reiterate our commitment to delay the construction of the project until it has established, in coordination with the government, a common ground for dialogue with the neighboring communities to address any concerns and provide assurances to achieve more social support for the project. Meanwhile, we will continue to work for the welfare of the local population.

​

Our social programs in education, healthcare and productive development will continue to improve the quality-of-life, and the agricultural and livestock activities in the Tambo Valley, as well as fishing and tourism in Islay. During the construction and operation phase, hiring local labor will be a priority. For this purpose, we have successfully launched in June the free technical training program “Forging the Future”, which will benefit 700 persons in this province in 2019-20. After training, the participants will be eligible to apply for one of the estimated 9,000 jobs (3,600 direct and 5,400 indirect) required during the Tia Maria construction phase. We strongly believe that the initiation of construction activities for Tia Maria will generate significant economic opportunities for the Islay province and the Arequipa region.

​

When in operation, we expect Tia Maria will generate a significant contribution through mining royalties and taxes from day-one and will directly employ 600 workers and indirectly provide jobs for another 4,200.

​

This greenfield project, located in Arequipa, Peru, will use state of the art SX-EW technology with the highest international environmental standards. SX-EW facilities are the most environmentally friendly in the industry due to their technical process with no emissions released into the atmosphere.

​

Los Chancas - Apurimac: This greenfield project, located in Apurimac, Peru, is a copper and molybdenum porphyry deposit. Current estimates indicate the presence of 545 million tons of mineralized material with a copper content of 0.59%, molybdenum content of 0.04% and 0.039 grams of gold per ton, as well as 181 million tons of mineralized leachable material with a total copper content of 0.357%. Los Chancas project envisions an open-pit mine with a combined operation of concentrator and SX-EW processes to annually produce 130,000 tons of copper and 7,500 tons of molybdenum. The estimated capital investment is $2,800 million and is expected to be in operation in 2025. In 2018 and 2019, we continued with the development of social and environmental improvements for the local communities. We plan to complete the environmental impact assessment in 2020.

​

Michiquillay Project - Cajamarca: On June 12, 2018, Southern Copper signed a contract and made an initial payment of $12.5 million for the acquisition of the Michiquillay project in Cajamarca, Peru. The Company has created a multidisciplinary management team to plan the development of this project. As part of this plan, the Company has established contact with the local authorities and communities in order to promote programs for the sustainable development of the area. In February 2019, the Company began preliminary social and technical work in the area of the project.

​

Michiquillay is a world class mining project with estimated mineralized material of 1,150 million tons with an estimated copper grade of 0.63%. When developed, we expect Michiquillay to produce 225,000 tons of copper per year (along with by-products of molybdenum, gold and silver) for an initial mine life of more than 25 years, at a competitive cash-cost. We estimate an investment of approximately $2.5 billion will be required and expect production start-up by 2025, with Michiquillay becoming one of Peru´s largest copper mines. The project will create significant business opportunities in the Cajamarca region, generate new jobs for the local communities and contribute with taxes and royalties to the national, regional and local governments.

​

The above information is based on estimates only. We cannot make any assurances that we will undertake any of these projects or that the information noted is accurate.

​

ACCOUNTING ESTIMATES

​

Our discussion and analysis of financial condition and results of operations, as well as quantitative and qualitative disclosures about market risks, are based upon our consolidated financial statements, which have been prepared in

45

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accordance with U.S. GAAP. Preparation of these consolidated financial statements requires our management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. We make our best estimate of the ultimate outcome for these items based on historical trends and other information available when the financial statements are prepared. Changes in estimates are recognized in accordance with the accounting rules for the estimate, which is typically in the period when new information becomes available to management. Areas where the nature of the estimate makes it reasonably possible that actual results could materially differ from amounts estimated include: ore reserves, revenue recognition, ore stockpiles on leach pads and related amortization, estimated impairment of assets, asset retirement obligations, determination of discount rates related to the financial lease liabilities, classification of operating leases versus financial leases, valuation allowances for deferred tax assets, unrecognized tax benefits and fair value of financial instruments. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions.

​

RESULTS OF OPERATIONS

​

The following highlights key financial results for the three and six months ended June 30, 2019 and 2018 (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  |  | Six Months Ended |  |
​ | ​ | June 30, | ​ | ​ | June 30, | ​ | ​
Statement of Earnings Data |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ | ​
Net sales | ​ | $ | 1,818.0 | ​ | $ | 1,837.2 | ​ | $ | (19.2) | ​ | $ | (1.0) | % | ​ | $ | 3,571.4 | ​ | $ | 3,678.4 | ​ | $ | (107.0) | ​ | $ | (2.9) | % | ​
Operating costs and expenses | ​ |  | (1,104.4) | ​ |  | (1,049.6) | ​ |  | (54.8) | ​ |  | (5.2) | % | ​ |  | (2,164.1) | ​ |  | (2,117.4) | ​ |  | (46.7) | ​ |  | (2.2) | % | ​
Operating income | ​ |  | 713.6 | ​ |  | 787.6 | ​ |  | (74.0) | ​ |  | (9.4) | % | ​ |  | 1,407.3 | ​ |  | 1,561.0 | ​ |  | (153.7) | ​ |  | (9.8) | % | ​
Non‑operating income (expense) | ​ |  | (56.6) | ​ |  | (68.9) | ​ |  | 12.3 | ​ |  | (17.8) | % | ​ |  | (125.4) | ​ |  | (138.0) | ​ |  | 12.6 | ​ |  | 9.1 | % | ​
Income before income taxes | ​ |  | 657.0 | ​ |  | 718.7 | ​ |  | (61.7) | ​ |  | (8.6) | % | ​ |  | 1,281.9 | ​ |  | 1,423.0 | ​ |  | (141.1) | ​ |  | (9.9) | % | ​
Income taxes | ​ |  | (251.1) | ​ | ​ | (309.1) | ​ | ​ | 58.0 | ​ | ​ | (18.8) | % | ​ | ​ | (489.0) | ​ | ​ | (545.7) | ​ | ​ | 56.7 | ​ | ​ | (10.4) | % | ​
Equity earnings of affiliate | ​ |  | (1.5) | ​ | ​ | 1.5 | ​ | ​ | (3.0) | ​ | ​ | (200.0) | % | ​ | ​ | 0.7 | ​ | ​ | 5.6 | ​ | ​ | (4.9) | ​ | ​ | (87.5) | % | ​
Net income attributable to non‑controlling interest | ​ |  | (2.0) | ​ |  | (1.5) | ​ |  | (0.5) | ​ |  | 33.0 | % | ​ |  | (3.0) | ​ |  | (2.6) | ​ |  | (0.4) | ​ |  | 15.4 | % | ​
Net income attributable to SCC | ​ | $ | 402.4 | ​ | $ | 409.6 | ​ | $ | (7.2) | ​ | $ | (1.8) | % | ​ | $ | 790.6 | ​ | $ | 880.3 | ​ | $ | (89.7) | ​ | $ | (10.2) | % | ​

​

NET SALES

​

Net sales for the second quarter 2019 were $1,818.0 million, compared to $1,837.2 million in the second quarter 2018, a decrease of $19.2 million. This 1.0% decrease was principally the result of lower metal prices as shown below.

​

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The table below outlines the average published market metals prices for our metals for the three and six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |  | ​
​ |  | 2019 |  | 2018 |  | % Change | ​ |  | 2019 |  | 2018 |  | % Change | ​ | ​
Copper price ($per pound—LME) | ​ | $ | 2.77 | ​ | $ | 3.12 | ​ | (11.2) | % | ​ | $ | 2.80 | ​ | $ | 3.14 | ​ | (10.80) | % | ​
Copper price ($per pound—COMEX) | ​ | $ | 2.78 | ​ | $ | 3.09 | ​ | (10.0) | % | ​ | $ | 2.80 | ​ | $ | 3.12 | ​ | (10.30) | % | ​
Molybdenum price ($per pound)(1) | ​ | $ | 12.13 | ​ | $ | 11.55 | ​ | 5.0 | % | ​ | $ | 11.91 | ​ | $ | 11.85 | ​ | 0.50 | % | ​
Zinc price ($per pound—LME) | ​ | $ | 1.25 | ​ | $ | 1.41 | ​ | (11.3) | % | ​ | $ | 1.24 | ​ | $ | 1.48 | ​ | (16.20) | % | ​
Silver price ($per ounce—COMEX) | ​ | $ | 14.85 | ​ | $ | 16.50 | ​ | (10.0) | % | ​ | $ | 15.18 | ​ | $ | 16.59 | ​ | (8.50) | % | ​

(1) | Platt’s Metals Week Dealer Oxide

​

The table below provides our metal sales as a percentage of our total net sales for the three and six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended | ​ | ​ | Six Months Ended |
​ | June 30, | ​ | ​ | June 30, | ​
Sales as a percentage of total net sales |  | 2019 |  | 2018 |  |  | 2019 |  | 2018 | ​
Copper |  | 79.7 | % | 81.0 | % |  | 80.2 | % | 80.5 | %
Molybdenum |  | 8.5 | % | 5.7 | % |  | 7.6 | % | 6.5 | %
Silver |  | 3.8 | % | 4.5 | % |  | 4.1 | % | 4.2 | %
Zinc |  | 4.2 | % | 5.2 | % |  | 4.3 | % | 5.2 | %
Other by‑products |  | 3.8 | % | 3.6 | % |  | 3.8 | % | 3.6 | %
Total |  | 100.0 | % | 100.0 | % |  | 100.0 | % | 100.0 | %

​

The table below provides our copper sales by type of product for the three and six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended June 30, | ​ |  | Six Months Ended June 30, | ​ |
Copper Sales (million pounds) |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ |  | 2019 |  | 2019 |  | Variance |  | % Change | ​ | ​
Refined (including SX‑EW) | ​ | 280.6 | ​ | 277.0 | ​ | 3.6 | ​ | 1.3 | % | ​ | 501.2 | ​ | 565.0 | ​ | (63.8) | ​ | (11.3) | % | ​
Rod | ​ | 81.2 | ​ | 81.0 | ​ | 0.2 | ​ | 0.2 | % | ​ | 177.6 | ​ | 163.9 | ​ | 13.7 | ​ | 8.4 | % | ​
Concentrates and other | ​ | 175.0 | ​ | 122.5 | ​ | 52.5 | ​ | 42.9 | % | ​ | 359.4 | ​ | 220.7 | ​ | 138.7 | ​ | 62.8 | % | ​
Total | ​ | 536.8 | ​ | 480.5 | ​ | 56.3 | ​ | 11.7 | % | ​ | 1,038.2 | ​ | 949.6 | ​ | 88.6 | ​ | 9.3 | % | ​

​

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The table below provides our copper sales volume by type of product as a percentage of our total copper sales volume for the three and six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three months ended June 30, | ​ | ​ | Six months ended June 30,
Copper Sales by product type |  | 2019 |  | 2018 | ​ |  | 2019 |  | 2018 |
Refined (including SX‑EW) |  | 52.3 | % | 57.6 | % |  | 48.3 | % | 59.5 | %
Rod |  | 15.1 | % | 16.9 | % |  | 17.1 | % | 17.3 | %
Concentrates and other |  | 32.6 | % | 25.5 | % |  | 34.6 | % | 23.2 | %
Total |  | 100.0 | % | 100.0 | % |  | 100.0 | % | 100.0 | %

​

OPERATING COSTS AND EXPENSES

​

The table below summarizes the production cost structure by major components as a percentage of total production cost:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three months ended June 30, | ​ |  | Six months ended June 30, | ​
​ | ​ | 2019 |  | 2018 | ​ | ​ | 2019 |  | 2018 | ​
Power |  | 14.3 | % | 12.6 | % |  | 15.2 | % | 14.4 | %
Labor |  | 12.9 | % | 14.8 | % |  | 13.7 | % | 13.8 | %
Fuel |  | 13.4 | % | 14.9 | % |  | 13.8 | % | 14.8 | %
Maintenance |  | 21.2 | % | 18.8 | % |  | 20.5 | % | 19.2 | %
Operating material |  | 17.8 | % | 19.3 | % |  | 18.0 | % | 19.1 | %
Other |  | 20.4 | % | 19.6 | % |  | 18.8 | % | 18.7 | %
Total |  | 100.0 | % | 100.0 | % |  | 100.0 | % | 100.0 | %

​

Second quarter: Operating costs and expenses were $1,104.4 million in the second quarter of 2019 compared to $1,049.6 million in the second quarter of 2018. The increase of $54.8 million was primarily due to:

​

​ | ​ | ​ | ​ | ​ | ​
​ | Operating cost and expenses for the second quarter of 2018 |  | $ | 1,049.6
​ | Plus: | ​ | ​ | ​
​ | • | Higher depreciation, amortization and depletion expense. |  |  | 36.2
​ | • | Higher cost of sales (exclusive of depreciation, amortization and depletion) mainly due to higher repairing materials costs, operating contractors and power costs, partially offset by lower inventory consumption and lower cost of metals purchased from third parties | ​ |  | 15.6
​ | • | Higher selling, general and administrative expenses. | ​ |  | 4.7
​ | Less: | ​ | ​ | ​ | ​
​ | • | Lower exploration expense. | ​ |  | (1.7)
​ | Operating cost and expenses for the second quarter of 2019 | ​ | $ | 1,104.4

​

​

Six months: Operating costs and expenses were $2,164.1 million in the first six months of 2019 compared to $2,117.4 million in the same period of 2018. The increase of $46.7 million was primarily due to:

​

​ | ​ | ​ | ​ | ​
Operating cost and expenses for the first six months of 2018 |  | $ | 2,117.4
Plus: | ​ | ​ | ​
• | Higher depreciation, amortization and depletion expense. |  |  | 55.8
• | Higher selling, general and administrative expenses. | ​ |  | 9.1
Less: | ​ | ​ | ​ | ​
• | Lower cost of sales (exclusive of depreciation, amortization and depletion) mainly due to lower cost of metals purchased from third parties and lower inventory consumption, partially offset by higher materials costs, higher power costs, and lower capitalized leachable material | ​ |  | (16.8)
• | Lower exploration expense. | ​ |  | (1.4)
Operating cost and expenses for the first six months of 2019 | ​ | $ | 2,164.1

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NON-OPERATING INCOME (EXPENSES)

​

Non-operating income and expense were a net expense of $56.6 million and $125.4 million in the three and six months ended June 30, 2019 compared to a net expense of $68.9 million and $138.0 million in the three and six months ended June 30, 2018.

​

Second quarter: The lower expense of $12.3 million was primarily due to:

​

● | $ 26.1 million of higher miscellaneous income, net, which includes a $25.0 million insurance payment due to rain damages suffered in our Peruvian operations.

● | $ 1.6 million of higher interest income, partially offset by,

● | $ 15.4 million of lower capitalized interest.

​

Six months: The lower expense of $12.6 million was primarily due to:

​

● | $ 33.8 million of higher miscellaneous income, net, which includes a $25.0 million insurance payment due to rain damages suffered in our Peruvian operations.

● | $ 2.7 million of higher interest income,

● | $ 0.2 million of lower interest expense, partially offset by,

● | $ 24.1 million of lower capitalized interest.

​

INCOME TAXES

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Six Months Ended |
​ | ​ | June 30, | ​
​ | ​ | 2019 |  | 2018 | ​
Provision for income taxes ($in millions) | ​ | $ | 489.0 | ​ | $ | 545.7 | ​
Effective income tax rate | ​ |  | 38.1 | % |  | 38.3 | %

​

These provisions include income taxes for Peru, Mexico and the United States. In addition, the Mexican royalty, the Peruvian royalty and the Peruvian special mining tax are included in the income tax provision. The effective tax rate for the first six months of 2019 remained relatively unchanged from the same period of the prior year, only decreasing by 0.2%. There was a 1.2% decrease in the rate due to the movement in exchange gain or loss from the appreciation in 2019 of the Mexican peso versus the U.S. dollar measured against the devaluation of the Mexican peso in the same period of 2018, which was mostly offset by an increase in the rate of 1.0% due to small increases in Peruvian income tax, dividend tax and Special Mining tax.

​

The amount of unrecognized tax benefits (UTB’s) that, if recognized, could affect the effective tax rate was $69.5 million at June 30, 2019, and $214.5 million at December 31, 2018. The change in the UTB’s relate entirely to U.S. income tax matters and the Company has no unrecognized Peruvian or Mexican tax benefits. The $145 million reduction during the quarter is due to the settlement with the Internal Revenue Service (IRS) of the examination of the 2011-2013 tax years. The change in the UTB’s had been anticipated by the Company, but because of the income tax accounting rules under ASC 740, the issues had to be effectively settled and the examination closed before the effect was final and reflected in the financial statements. The audit closing resulted in an immaterial tax benefit in the financial statements that was the result of the removal of the previous accrual of interest and penalty. The remaining reversal of uncertain tax positions was offset by changes in the deferred tax asset for foreign tax credits and valuation allowance.

​

​

SEGMENT RESULT ANALYSIS

​

We have three segments: the Peruvian operations, the Mexican open-pit operations and the Mexican underground mining operations.

​

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The table below presents information regarding the volume of our copper sales by segment for the three and six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended June 30, | ​ |  | Six Months Ended June 30, | ​ |
Copper Sales (million pounds) |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ | ​
Peruvian operations | ​ | 246.3 |  | 183.2 | ​ | 63.1 |  | 34.4 | % | ​ | 436.5 |  | 360.5 | ​ | 76.0 |  | 21.1 | % | ​
Mexican open‑pit | ​ | 290.4 |  | 297.2 | ​ | (6.8) |  | (2.3) | % | ​ | 601.4 |  | 589.0 | ​ | 12.4 |  | 2.1 | % | ​
Mexican IMMSA unit | ​ | 4.9 |  | 6.1 | ​ | (1.2) |  | (19.7) | % | ​ | 9.5 |  | 10.2 | ​ | (0.7) |  | (6.9) | % | ​
Other and intersegment elimination | ​ | (4.8) |  | (6.1) | ​ | 1.3 |  | (21.3) | % | ​ | (9.2) |  | (10.2) | ​ | 1.0 |  | (9.8) | % | ​
Total copper sales | ​ | 536.8 |  | 480.4 | ​ | 56.4 |  | 11.7 | % | ​ | 1,038.2 |  | 949.5 | ​ | 88.7 |  | 9.3 | % | ​

​

The table below presents information regarding the volume of sales by segment of our significant by-products for the three and six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, | ​ | ​ | Six Months Ended June 30, | ​ |
By‑product Sales (million pounds, except silver—million ounces) |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ |  | 2019 |  | 2018 |  | Variance |  | % Change | ​ | ​
Peruvian operations: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Molybdenum contained in concentrate | ​ | 5.9 | ​ | 3.7 | ​ | 2.2 |  | 59.5 | % | ​ | 8.6 | ​ | 7.5 | ​ | 1.1 |  | 14.7 | % |
Silver | ​ | 1.5 | ​ | 1.1 | ​ | 0.4 |  | 36.4 | % | ​ | 2.5 | ​ | 2.0 | ​ | 0.5 |  | 25.0 | % |
Mexican open‑pit operations: | ​ |  | ​ |  | ​ |  |  |  | ​ | ​ |  | ​ |  | ​ |  |  |  | ​ |
Molybdenum contained in concentrate | ​ | 9.0 | ​ | 8.3 | ​ | 0.7 |  | 8.4 | % | ​ | 17.6 | ​ | 16.1 | ​ | 1.5 |  | 9.3 | % |
Silver | ​ | 2.5 | ​ | 2.9 | ​ | (0.4) |  | (13.8) | % | ​ | 5.8 | ​ | 5.4 | ​ | 0.4 |  | 7.4 | % |
IMMSA unit | ​ |  | ​ |  | ​ |  |  |  | ​ | ​ |  | ​ |  | ​ |  |  |  | ​ |
Zinc‑refined and in concentrate | ​ | 58.2 | ​ | 64.0 | ​ | (5.8) |  | (9.1) | % | ​ | 117.6 | ​ | 122.2 | ​ | (4.6) |  | (3.8) | % |
Silver | ​ | 1.2 | ​ | 1.5 | ​ | (0.3) |  | (20.0) | % | ​ | 2.3 | ​ | 2.8 | ​ | (0.5) |  | (17.9) | % |
Other and intersegment elimination | ​ |  | ​ |  | ​ |  |  |  | ​ | ​ |  | ​ |  | ​ |  |  |  | ​ |
Silver | ​ | (0.5) | ​ | (0.4) | ​ | (0.1) |  | 25.0 | % | ​ | (0.8) | ​ | (0.9) | ​ | 0.1 |  | (11.1) | % |
Total by‑product sales | ​ |  | ​ |  | ​ |  |  |  | ​ | ​ |  | ​ |  | ​ |  |  |  | ​ |
Molybdenum contained in concentrate | ​ | 14.9 | ​ | 12.0 | ​ | 2.9 |  | 24.5 | % | ​ | 26.2 | ​ | 23.6 | ​ | 2.6 |  | 11.1 | % |
Zinc‑refined and in concentrate | ​ | 58.2 | ​ | 64.0 | ​ | (5.8) |  | (9.1) | % | ​ | 117.6 | ​ | 122.2 | ​ | (4.6) |  | (3.8) | % |
Silver | ​ | 4.7 | ​ | 5.1 | ​ | (0.4) |  | (6.9) | % | ​ | 9.8 | ​ | 9.3 | ​ | 0.5 |  | 5.3 | % |

​

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Peruvian Operations:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended June 30, | ​ |  | Six Months Ended June 30, | ​
​ | ​ | 2019 |  | 2018 | ​ | Variance | ​ | % Change | ​ | ​ | 2019 |  | 2018 | ​ | Variance |  | % Change | ​
Net sales | ​ | $ | 766.5 | ​ | $ | 641.8 | ​ | $ | 124.7 | ​ | ​ | 19.4 | % | ​ | $ | 1,346.6 | ​ | $ | 1,284.7 | ​ | $ | 61.9 | ​ | ​ | 4.8 | %
Operating costs and expenses | ​ |  | (505.4) | ​ |  | (441.4) | ​ |  | (64.0) | ​ |  | 14.5 | % | ​ |  | (940.8) | ​ |  | (895.0) | ​ |  | (45.8) | ​ | ​ | 5.1 | %
Operating income | ​ | $ | 261.1 | ​ | $ | 200.4 | ​ | $ | 60.7 | ​ | ​ | 30.3 | % | ​ | $ | 405.8 | ​ | $ | 389.7 | ​ | $ | 16.1 | ​ | ​ | 4.1 | %

​

Net sales in the second quarter of 2019 were $766.5 million compared to $641.8 million in the second quarter of 2018. The increase in net sales was mainly the result of higher production from the new concentrator at the Toquepala mine which increased copper (+34.4%), molybdenum (+59.5%) and silver (+36.4%) sales volumes.

​

Operating costs and expenses in the second quarter of 2019 increased by $64.0 million to $505.4 million from $441.4 million in the second quarter of 2018, primarily due to:

​

​ | ​ | ​ | ​ | ​ | ​
​ | Operating costs and expenses for the second quarter of 2018 |  | $ | 441.4
​ | Plus: | ​ |  |
​ | • | Higher cost of sales (exclusive of depreciation, amortization and depletion) mainly due to higher repairing materials costs, higher operating contractors, higher workers’ participation expense and higher metals purchased from third parties; partially offset by lower inventory consumption. | ​ |  | 39.9
​ | • | Higher depreciation, amortization and depletion expense. | ​ |  | 26.6
​ | • | Higher selling, general and administrative expenses. | ​ | ​ | 0.2
​ | Less: | ​ | ​ | ​ | ​
​ | • | Lower exploration expenses. | ​ |  | (2.7)
​ | Operating costs and expenses for the second quarter of 2019 | ​ | $ | 505.4

​

Net sales in the first six months of 2019 were $1,346.6 million compared to $1284.7 million in the first six months of 2018. The increase in net sales was mainly the result of higher production from the new concentrator at the Toquepala mine which increased copper (+21.1%), molybdenum (+14.7%) and silver (+25.0%) sales volumes.

​

Operating costs and expenses in the first six months of 2019 increased by $45.8 million to $940.8 million from $895.0 million in the same period of 2018, primarily due to:

​

​ | ​ | ​ | ​ | ​ | ​
​ | Operating costs and expenses for the first six months of 2018 |  | $ | 895.0
​ | Plus: | ​ |  |
​ | • | Higher depreciation, amortization and depletion expense. | ​ |  | 49.7
​ | • | Higher selling, general and administrative expenses. | ​ | ​ | 0.4
​ | Less: | ​ | ​ | ​ | ​
​ | • | Lower cost of sales (exclusive of depreciation, amortization and depletion) mainly due to lower cost of metals purchased from third parties and lower inventory consumption; partially offset by higher operating contractors costs and higher worker´s participation expense. | ​ |  | (1.9)
​ | • | Lower exploration expenses. | ​ |  | (2.4)
​ | Operating costs and expenses for the first six months of 2019 | ​ | $ | 940.8

​

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Mexican Open-pit Operations:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three Months Ended June 30, | ​ | ​ | Six Months Ended June 30, | ​ | ​
​ | 2019 |  | 2018 | ​ | Variance | ​ | % Change |  | ​ | 2019 |  | 2018 | ​ | Variance | ​ | % Change | ​ | ​
Net sales | $ | 954.6 | ​ | $ | 1,061.1 | ​ | $ | (106.5) | ​ | ​ | (10.0) | % | ​ | $ | 2,026.7 | ​ | $ | 2,129.7 | ​ | $ | (103.0) | ​ | ​ | (4.8) | % | ​
Operating costs and expenses |  | (489.3) | ​ |  | (500.8) | ​ |  | 11.5 | ​ |  | (2.3) | % | ​ |  | (1,010.6) | ​ |  | (1,017.2) | ​ |  | 6.6 | ​ |  | (0.6) | % | ​
Operating income | $ | 465.3 | ​ | $ | 560.3 | ​ | $ | (95.0) | ​ | ​ | (17.0) | % | ​ | $ | 1,016.1 | ​ | $ | 1,112.5 | ​ | $ | (96.4) | ​ | ​ | (8.7) | % | ​

​

Net sales in the second quarter of 2019 were $954.6 million, compared to $1,061.1 million in the second quarter of 2018. The decrease of $106.5 million was principally due to lower prices and sales volumes for copper and silver.

​

Operating costs and expenses in the second quarter of 2019 decreased by $11.5 million to $489.3 million from $500.8 million in the same 2018 period, primarily due to:

​

​ | ​ | ​ | ​ | ​ | ​
​ | Operating costs and expenses for the second quarter of 2018 |  | $ | 500.8
​ | Less: | ​ |  |
​ | • | Lower cost of sales (exclusive of depreciation, amortization and depletion) mainly due to lower metals purchased from third parties and lower inventory consumption; partially offset by lower capitalized leachable material, higher power costs and foreign currency effect. | ​ |  | (19.5)
​ | Plus: | ​ |  |
​ | • | Higher selling, general and administrative expenses. | ​ |  | 2.0
​ | • | Higher depreciation, amortization and depletion expense. | ​ |  | 6.0
​ | Operating costs and expenses for the second quarter of 2019 | ​ | $ | 489.3

​

Net sales in the first six months of 2019 were $2,026.7 million, compared to $2,129.7 million in the first six months of 2018. The decrease of $103.0 million was principally due to lower copper and silver prices. This effect was partially offset by higher sales volume of copper (+2.1%), silver (+7.4%) and molybdenum (+9.3)%.

​

Operating costs and expenses in the first six months of 2019 decreased by $6.6 million to $1,010.6 million from $1,017.2 million in the same 2018 period, primarily due to:

​

​ | ​ | ​ | ​ | ​ | ​
​ | Operating cost and expenses for the first six months of 2018 |  | $ | 1,017.2
​ | Less: | ​ |  | ​
​ | • | Lower cost of sales (exclusive of depreciation, amortization and depletion) mainly due to lower metals purchased from third parties, lower worker´s participation expense and foreign currency effect; partially offset by lower capitalized leachable material and higher power costs. | ​ |  | (11.3)
​ | • | Lower depreciation, amortization and depletion expense. | ​ | ​ | (1.5)
​ | • | Lower exploration expenses. | ​ | ​ | (0.2)
​ | Plus: | ​ | ​ | ​
​ | • | Higher selling, general and administrative expenses. | ​ |  | 6.4
​ | Operating costs and expenses for the first six months of 2019 | ​ | $ | 1,010.6

​

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Mexican Underground Operations (IMMSA):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Three Months Ended June 30, | ​ |  | Six Months Ended June 30, | ​ | ​
​ | 2019 |  | 2018 | ​ | Variance | ​ | % Change |  |  | 2019 |  | 2018 | ​ | Variance | ​ | % Change |  | ​
Net sales | $ | 122.3 | ​ | $ | 153.1 | ​ | $ | (30.8) | ​ | ​ | (20.1) | % | ​ | $ | 243.4 | ​ | $ | 302.4 | ​ | $ | (59.0) | ​ | ​ | (19.5) | % | ​
Operating costs and expenses |  | (122.6) | ​ |  | (115.7) | ​ |  | (6.9) | ​ |  | 6.0 | % | ​ |  | (239.3) | ​ |  | (225.9) | ​ |  | (13.4) | ​ |  | 5.9 | % | ​
Operating income | $ | (0.3) | ​ | $ | 37.4 | ​ | $ | (37.7) | ​ | ​ | (100.8) | % | ​ | $ | 4.1 | ​ | $ | 76.5 | ​ | $ | (72.4) | ​ | ​ | (94.6) | % | ​

​

Net sales in the second quarter of 2019 were $122.3 million, compared to $153.1 million in the second quarter of 2018. This decrease of $30.8 million was primarily due to lower metal prices.

​

Operating costs and expenses in the second quarter of 2019 increased by $6.9 million to $122.6 million from $115.7 million in the second quarter of 2018, primarily due to:

​

​ | ​ | ​ | ​ | ​
Operating cost and expenses for the second quarter of 2018 |  | $ | 115.7
Plus: | ​ | ​ |  | ​
• | Higher cost of sales (exclusive of depreciation, amortization and depletion) mainly due to higher power costs and higher repairing materials costs, partially offset by lower workers’ participation expense and lower cost of metals purchased from third parties. | ​ |  | 3.6
• | Higher depreciation, amortization and depletion expense. | ​ | ​ | 2.2
• | Higher exploration expenses. | ​ | ​ | 1.4
Less: | ​ | ​ | ​ | ​
• | Lower selling, general and administrative expenses. | ​ |  | (0.3)
Operating costs and expenses for the second quarter of 2019 | ​ | $ | 122.6

​

​

Net Sales in the first six months of 2019 were $243.4 million, compared to $302.4 million in the first six months of 2018. This decrease of $59.0 million was primarily due to lower metal prices.

​

Operating costs and expenses in the first six months of 2019 increased by $13.4 million to $239.3 million from $225.9 million in the first six months of 2018, primarily due to:

​

​ | ​ | ​ | ​ | ​
Operating cost and expenses for the first six months of 2018 |  | $ | 225.9
Plus: | ​ | ​ |  | ​
• | Higher cost of sales (exclusive of depreciation, amortization and depletion) mainly due to higher power costs and higher repairing materials costs; partially offset by lower workers’ participation expense and lower cost of metals purchased from third parties. | ​ | ​ | 8.1
• | Higher depreciation, amortization and depletion expense. | ​ | ​ | 4.1
• | Higher exploration expenses. | ​ | ​ | 2.1
Less: | ​ | ​ | ​ | ​
• | Lower selling, general and administrative expenses. | ​ |  | (0.9)
Operating costs and expenses for the first six months of 2019 | ​ | $ | 239.3

​

​

Intersegment Eliminations and Adjustments:

​

The net sales, operating costs and expenses and operating income discussed above will not be directly equal to amounts in our condensed consolidated statement of earnings because the adjustments of intersegment operating revenues and expenses must be taken into account. Please see Note 10 “Segment and Related Information” of the condensed consolidated financial statements.

​

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LIQUIDITY AND CAPITAL RESOURCES

​

Cash flow:

​

The following table shows the cash flow for the first six months of 2019 and 2018 (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018 |  | Variance | ​
Net cash provided by operating activities | ​ | $ | 785.3 | ​ | $ | 1,056.1 | ​ | $ | (270.8) | ​
Net cash used in investing activities | ​ | $ | (258.4) | ​ | $ | (561.9) | ​ | $ | 303.5 | ​
Net cash used in financing activities | ​ | $ | (618.2) | ​ | $ | (464.6) | ​ | $ | (153.6) | ​

​

Net cash provided by operating activities:

​

The change in net cash from operating activities for the first six months of 2019 and 2018 include (in millions):

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2019 |  | 2018 |  | Variance |  | % Change | ​
Net income | ​ | $ | 793.6 | ​ | $ | 882.9 | ​ | $ | (89.3) | ​ | ​ | (10.1) | %
Depreciation, amortization and depletion | ​ |  | 380.4 | ​ |  | 324.6 | ​ |  | 55.8 | ​ |  | 17.2 | %
Provision (benefit) for deferred income taxes | ​ |  | 50.2 | ​ |  | (15.5) | ​ |  | 65.7 | ​ |  | (423.9) | %
Loss (gain) on foreign currency transaction effect | ​ |  | 9.4 | ​ |  | 26.4 | ​ |  | (17.0) | ​ |  | (64.4) | %
Other adjustments to net income | ​ |  | 8.0 | ​ |  | (8.4) | ​ |  | 16.4 | ​ |  | (195.2) | %
Operating assets and liabilities | ​ |  | (456.3) | ​ |  | (153.9) | ​ |  | (302.4) | ​ |  | 196.5 | %
Net cash provided from operating activities | ​ | $ | 785.3 | ​ | $ | 1,056.1 | ​ | $ | (270.8) | ​ | ​ | (25.6) | %

​

Significant items added to (deducted from) net income to arrive at operating cash flow include depreciation, amortization and depletion, deferred tax amounts, foreign currency fluctuations and changes in operating assets and liabilities.

​

Six months ended June 30, 2019: Net income was $793.6 million, approximately 101% of the net operating cash flow. An increase in operating assets and liabilities decreased operating cash flow by $456.3 million and included:

​

● | $35.3 million decrease in accounts receivable.

● | $(64.2) million of net increase in inventory, which included $(55.1) million of higher leaching inventory, and $(14.6) million of lower work in process, partially offset by $3.4 million of lower finished goods and $2.1 million of lower supplies inventory.

● | $(328.6) million decrease in accounts payable and accrued liabilities, which included principally the income taxes and workers’ participation payments at our Mexican operations.

● | $(98.8) million increase in other operating assets and liabilities, which included principally $(108.0) million of higher prepaid taxes.

​

Six months ended June 30, 2018: Net income was $882.9 million, approximately 83.6% of the net operating cash flow. A decrease in operating assets and liabilities increased operating cash flow by $153.9 million and included:

​

● | $77.5 million decrease in accounts receivable.

● | $(87.6) million of net increase in inventory, which included $(126.1) million of higher leaching inventory, $(12.1) million of higher finished goods and work in process, and $(10.7) million of higher supplies inventory partially offset by $61.3 million of lower inventories in process.

● | $(94.6) million decrease in accounts payable and accrued liabilities, which included $(138.2) million of workers’ participation paid at our Mexican operations, partially offset by $43.6 million of higher other liabilities.

● | $(49.2) million increase in other operating assets and liabilities, which included principally $(50.1) million of higher prepaid taxes.

​

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Net cash used for investing activities:

​

Six months ended June 30, 2019: Net cash used for investing activities included $353.5 million for capital investments. The capital investments included:

​

● | $170.8 million of investments at our Mexican operations:

​

| ● | $15.0 million for the new tailing disposal deposit at the Buenavista mine,

| ● | $11.7 million for the over elevation of tailings deposit N° 7 at the La Caridad Mine,

| ● | $47.1 million at our IMMSA unit,

| ● | $94.6 million for various other replacement and maintenance expenditures, and

| ● | $2.4 million decrease in capital expenditures incurred but not yet paid.

​

● | $182.7 million of investments at our Peruvian operations:

​

| ● | $59.5 million for the Toquepala concentrator expansion project,

| ● | $4.7 million for the tailings disposal at Quebrada Honda project,

| ● | $4.2 million for the Ilo sulfuric acid plant N°1 modification,

| ● | $12.8 million for the Toquepala equipment acquisition,

| ● | $72.7 million for various other replacement and maintenance expenditures, and

| ● | $28.8 million decrease in capital expenditures incurred but not yet paid.

​

The first six months of 2019 investment activities include $95.0 million of net proceeds from short-term investments.

​

Six months ended June 30, 2018: Net cash used for investing activities included $549.6 million for capital investments. The capital investments included:

​

● | $185.3 million of investments at our Mexican operations:

​

| ● | $46.5 million for the new tailing disposal deposit at the Buenavista mine,

| ● | $6.6 million for the over elevation of tailings deposit N° 7 at the La Caridad Mine,

| ● | $9.1 million for the new Buenavista concentrator,

| ● | $2.3 million for the Sonora River water restitution system located in the Moritas basin,

| ● | $23.8 million at our IMMSA unit,

| ● | $89.0 million for various other replacement and maintenance expenditures, and

| ● | $8.0 million decrease in capital expenditures incurred but not yet paid.

​

● | $364.3 million of investments at our Peruvian operations:

​

| ● | $168.0 million for the Toquepala concentrator expansion project,

| ● | $9.5 million for the tailings disposal at Quebrada Honda project,

| ● | $4.4 million for the High Pressure Grinding Roll (HPGR) system in Toquepala,

| ● | $6.1 million for the Toquepala mine equipment acquisition,

| ● | $96.3 million for various other replacement and maintenance expenditures, and

| ● | $80.0 million decrease in capital expenditures incurred but not yet paid.

​

The first six months of 2018 investment activities include $0.2 million of net purchases of short-term investments.

​

Net cash used for financing activities in the six months ended June 30, 2019 was $618.2 million, compared to $464.6 million in the six months ended June 30, 2018. The first six months of 2019 included a dividend distribution of $618.5 million, compared to a distribution of $463.8 million in the same period of 2018.

​

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Dividends:

​

On May 17, 2019, we paid a dividend of $0.40 per share totaling $309.2 million. On July 18, 2019, our Board of Directors authorized a quarterly dividend of $0.40 per share, expected to total $309.2 million, to be paid on August 22, 2019 to SCC shareholders of record at the close of business on August 08, 2019.

​

Capital Investment and Exploration Programs:

​

A discussion of our capital investment programs is an important part of understanding our liquidity and capital resources. We expect to meet the cash requirements for these capital investments from cash on hand, internally generated funds and from additional external financing if required. For information regarding our capital investment programs, please see the discussion under the caption “Capital Investment Programs” under this Item 2.

​

Contractual Obligations:

​

There have been no material changes in our contractual obligations in the first six months of 2019. Please see item 7 in Part II of our 2018 annual report on Form 10-K.

​

NON-GAAP INFORMATION RECONCILIATION

​

Operating cash cost: Following is a reconciliation of “Operating Cash Cost” (see page 40) to cost of sales (exclusive of depreciation, amortization and depletion) as reported in our consolidated statement of earnings, in millions of dollars and dollars per pound of copper in the table below:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  | Three Months Ended |  | Six Months Ended |  | Six Months Ended | ​
​ | ​ | June 30, 2019 | ​ | June 30, 2018 | ​ | June 30, 2019 | ​ | June 30, 2018 | ​
​ |  | ​ | ​ |  | $ per |  | ​ | ​ |  | $ per |  | ​ | ​ |  | $ per |  | ​ | ​ |  | $ per | ​
​ | ​ | $ millions | ​ | pound | ​ | $ millions | ​ | pound | ​ | $ millions | ​ | pound | ​ | $ millions | ​ | pound | ​
Cost of sales (exclusive of depreciation, amortization and depletion) | ​ | $ | 867.3 | ​ | $ | 1.58 | ​ | $ | 851.7 | ​ | $ | 1.81 | ​ | $ | 1,711.4 | ​ | $ | 1.64 | ​ | $ | 1,728.2 | ​ | $ | 1.91 | ​
Add: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Selling, general and administrative | ​ |  | 30.9 | ​ |  | 0.06 | ​ |  | 26.2 | ​ |  | 0.06 | ​ |  | 59.4 | ​ |  | 0.06 | ​ |  | 50.3 | ​ |  | 0.06 | ​
Sales premiums, net of treatment and refining charges | ​ |  | 10.1 | ​ |  | 0.02 | ​ |  | 8.1 | ​ |  | 0.02 | ​ |  | 21.7 | ​ |  | 0.02 | ​ |  | 7.3 | ​ |  | 0.01 | ​
Less: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Workers’ participation | ​ |  | (58.3) | ​ |  | (0.11) | ​ |  | (61.4) | ​ |  | (0.13) | ​ |  | (107.0) | ​ |  | (0.10) | ​ |  | (117.3) | ​ |  | (0.13) | ​
Cost of metals purchased from third parties | ​ |  | (60.9) | ​ |  | (0.11) | ​ |  | (105.9) | ​ |  | (0.23) | ​ |  | (112.9) | ​ |  | (0.11) | ​ |  | (252.8) | ​ |  | (0.28) | ​
Royalty charge and other, net | ​ |  | (43.2) | ​ |  | (0.08) | ​ |  | (22.1) | ​ |  | (0.04) | ​ |  | (73.1) | ​ |  | (0.07) | ​ |  | (78.2) | ​ |  | (0.09) | ​
Inventory change | ​ |  | 50.8 | ​ |  | 0.09 | ​ |  | (2.4) | ​ |  | (0.01) | ​ |  | 46.6 | ​ |  | 0.05 | ​ |  | 45.0 | ​ |  | 0.05 | ​
Operating Cash Cost before by‑product revenues | ​ | $ | 796.7 | ​ | $ | 1.45 | ​ | $ | 694.2 | ​ | $ | 1.48 | ​ | $ | 1,546.1 | ​ | $ | 1.49 | ​ | $ | 1,382.5 | ​ | $ | 1.53 | ​
Add: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
By‑product revenues(1) | ​ |  | (344.6) | ​ |  | (0.63) | ​ |  | (294.1) | ​ |  | (0.63) | ​ |  | (636.6) | ​ |  | (0.61) | ​ |  | (615.9) | ​ |  | (0.68) | ​
Net revenue on sale of metal purchased from third parties | ​ |  | (7.9) | ​ |  | (0.01) | ​ |  | (14.1) | ​ |  | (0.03) | ​ |  | (21.6) | ​ |  | (0.02) | ​ |  | (35.3) | ​ |  | (0.04) | ​
Add: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
Total by‑product revenues | ​ |  | (352.5) | ​ |  | (0.64) | ​ |  | (308.2) | ​ |  | (0.66) | ​ |  | (658.2) | ​ |  | (0.63) | ​ |  | (651.2) | ​ |  | (0.72) | ​
Operating Cash Cost net of by‑product revenues | ​ |  | 444.2 | ​ |  | 0.81 | ​ |  | 386.0 | ​ |  | 0.82 | ​ |  | 887.9 | ​ |  | 0.86 | ​ |  | 731.3 | ​ |  | 0.81 | ​

(1) | By-product revenues included in our presentation of operating cash cost contain the following:

​

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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  | Three Months Ended |  | Six Months Ended |  | Six Months Ended | ​
​ | ​ | ​ | June 30, 2019 | ​ | ​ | June 30, 2018 | ​ | ​ | June 30, 2019 | ​ | ​ | June 30, 2018 | ​
​ |  | ​ | ​ |  | $ per |  | ​ | ​ |  | $ per |  | ​ | ​ |  | $ per |  | ​ | ​ |  | $ per | ​
​ | ​ | $ millions | ​ | pound | ​ | $ millions | ​ | pound | ​ | $ millions | ​ | pound | ​ | $ millions | ​ | pound | ​
Molybdenum | ​ | $ | (154.6) | ​ | $ | (0.28) | ​ | $ | (104.5) | ​ | $ | (0.22) | ​ | $ | (272.9) | ​ | $ | (0.26) | ​ | $ | (240.8) | ​ | $ | (0.27) | ​
Silver | ​ |  | (60.5) | ​ |  | (0.11) | ​ |  | (62.8) | ​ |  | (0.13) | ​ |  | (124.7) | ​ |  | (0.12) | ​ |  | (123.1) | ​ |  | (0.13) | ​
Zinc | ​ |  | (63.8) | ​ |  | (0.12) | ​ |  | (66.1) | ​ |  | (0.14) | ​ |  | (110.4) | ​ |  | (0.10) | ​ |  | (129.2) | ​ |  | (0.14) | ​
Sulfuric Acid | ​ |  | (43.7) | ​ |  | (0.08) | ​ |  | (27.1) | ​ |  | (0.06) | ​ |  | (74.7) | ​ |  | (0.07) | ​ |  | (52.7) | ​ |  | (0.06) | ​
Gold and others | ​ |  | (22.0) | ​ |  | (0.04) | ​ |  | (33.6) | ​ |  | (0.08) | ​ |  | (53.9) | ​ |  | (0.06) | ​ |  | (70.1) | ​ |  | (0.08) | ​
Total | ​ | $ | (344.6) | ​ | $ | (0.63) | ​ | $ | (294.1) | ​ | $ | (0.63) | ​ | $ | (636.6) | ​ | $ | (0.61) | ​ | $ | (615.9) | ​ | $ | (0.68) | ​

​

​

Item 3. Quantitative and Qualitative Disclosure about Market Risk

​

Commodity price risk:

​

For additional information on metal price sensitivity, refer to “Metal Prices” in Part I, Item 2 of this quarterly report on Form 10-Q for the period ended June 30, 2019.

​

Foreign currency exchange rate risk:

​

Our functional currency is the U.S. dollar. Portions of our operating costs are denominated in Peruvian soles and Mexican pesos. Since our revenues are primarily denominated in U.S. dollars, when inflation or deflation in our Mexican or Peruvian operations is not offset by a change in the exchange rate of the sol or the peso to the dollar, our financial position, results of operations and cash flows could be affected by local cost conversion when expressed in U.S. dollars. In addition, the dollar value of our net monetary assets denominated in soles or pesos can be affected by exchange rate variances of the sol or the peso, resulting in a re-measurement gain or loss in our financial statements. Recent inflation and exchange rate variances are provided in the table below for the three and six months ended June 30, 2019 and 2018:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  |  | Six Months Ended |
​ | ​ | June 30, | ​ | ​ | June 30, | ​
​ |  | 2019 |  | 2018 |  |  | 2019 |  | 2018 |
Peru: |  |  |  |  |  |  |  |  |  |
Peruvian inflation rate |  | 0.3 | % | 0.3 | % |  | 1.2 | % | 1.2 | %
Initial exchange rate |  | 3.321 |  | 3.229 |  |  | 3.379 |  | 3.245 |
Closing exchange rate |  | 3.290 |  | 3.274 |  |  | 3.290 |  | 3.274 |
Appreciation/(devaluation) |  | 0.9 | % | (1.3) | % |  | 2.6 | % | (0.9) | %
Mexico: |  |  |  |  |  |  |  |  |  |
Mexican inflation rate |  | (0.2) | % | (0.1) | % |  | 0.3 | % | 1.1 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Initial exchange rate |  | 19.379 |  | 18.345 |  |  | 19.683 |  | 19.735 |
Closing exchange rate |  | 19.169 |  | 19.863 |  |  | 19.169 |  | 19.863 |
Appreciation/(devaluation) |  | 1.9 | % | (8.3) | % |  | 2.6 | % | (0.6) | %

​

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Change in monetary position:

​

Assuming an exchange rate variance of 10% at June 30, 2019 we estimate our net monetary position in Peruvian sol and Mexican peso would increase (decrease) our net earnings as follows:

​

​ | ​ | ​ | ​
​ |  | Effect in net
​ |  | earnings
​ |  | ($ in millions)
Appreciation of 10% in U.S. dollar vs. Peruvian sol | ​ | $ | 15.8
Devaluation of 10% in U.S. dollar vs. Peruvian sol | ​ | $ | (19.3)
Appreciation of 10% in U.S. dollar vs. Mexican peso | ​ | $ | (9.5)
Devaluation of 10% in U.S. dollar vs. Mexican peso | ​ | $ | 11.6

​

Open sales risk:

​

Our provisional copper and molybdenum sales contain an embedded derivative that is required to be separate from the host contract for accounting purposes. The host contract is the receivable from the sale of copper and molybdenum concentrates at prevailing market prices at the time of the sale. The embedded derivative, which does not qualify for hedge accounting, is marked to market through earnings each period prior to settlement. See Note 5 to our condensed consolidated financial statements for further information about these provisional sales.

​

Short-term Investments:

​

For additional information on our trading securities and available-for-sale investments, refer to “Short-term Investments” in Part I, Item 1 of this quarterly report on Form 10-Q for the period ended June 30, 2019.

​

Cautionary Statement:

​

Forward-looking statements in this report and in other Company statements include statements regarding expected commencement dates of mining or metal production operations, projected quantities of future metal production, anticipated production rates, operating efficiencies, costs and expenditures as well as projected demand or supply for the Company’s products. Actual results could differ materially depending upon factors including the risks and uncertainties relating to general U.S. and international economic and political conditions, the cyclical and volatile prices of copper, other commodities and supplies, including fuel and electricity, availability of materials, insurance coverage, equipment, required permits or approvals and financing, the occurrence of unusual weather or operating conditions, lower than expected ore grades, water and geological problems, the failure of equipment or processes to operate in accordance with specifications, failure to obtain financial assurance to meet closure and remediation obligations, labor relations, litigation and environmental risks as well as political and economic risk associated with foreign operations. Results of operations are directly affected by metal prices on commodity exchanges that can be volatile.

​

Item 4. Controls and Procedures

​

EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES

​

As of June 30, 2019, the Company conducted an evaluation under the supervision and with the participation of the Company’s disclosure committee and the Company’s management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness and the design and operation of the Company’s disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)). Based on that evaluation, the Chief Executive Officer and the Chief Financial Officer have concluded that the Company’s disclosure controls and procedures are effective as of June 30, 2019, to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is:

​

| 1. | Recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and

​

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| 2. | Accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

​

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

​

Beginning January 1, 2019, the Company adopted ASC 842, Leases. In relation to this, the Company implemented changes to its internal controls related to lease accounting. These changes included performing a comprehensive lease scoping analysis to identify, disaggregate and evaluate each of the Company’s lease categories and implementing a model to calculate right-of-use assets and lease liabilities values for the Company’s leases. There were no other changes in the Company’s internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended) that occurred during the first six months ended June 30, 2019 that have materially affected, or are reasonably likely to materially affect, the Company’s internal controls over financial reporting.

​

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Report of Independent Registered Public Accounting Firm

​

To the Board of Directors and Shareholders of Southern Copper Corporation:

​

Results of Review of Interim Financial Statements

​

We have reviewed the accompanying condensed consolidated balance sheet of Southern Copper Corporation and subsidiaries (the “Company”) as of June 30, 2019, the related condensed consolidated statements of earnings, comprehensive income and cash flows for the three-month and six-month periods ended June 30, 2019 and 2018, and the related notes (collectively referred to as the “interim financial information”). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial information for it to be in conformity with accounting principles generally accepted in the United States of America.

​

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2018, and the related consolidated statements of earnings, comprehensive income, and cash flows for the year then ended (not presented herein); and in our report dated March 1, 2019, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying condensed consolidated balance sheet as of December 31, 2018 is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

​

Basis for Review Results

​

This interim financial information is the responsibility of the Company’s management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

​

We conducted our reviews in accordance with standards of the PCAOB. A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the condensed consolidated interim financial statements taken as a whole. Accordingly, we do not express such an opinion.

​

Galaz, Yamazaki, Ruiz Urquiza, S.C.

Member of Deloitte Touche Tohmatsu Limited

​

| ​
/s/ Daniel Toledo Antonio | ​
C.P.C. Daniel Toledo Antonio | ​
Mexico City, Mexico | ​
July 25, 2019 | ​

​

​

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PART II — OTHER INFORMATION

​

Item 1. Legal Proceedings:

​

The information provided in Note 9 “Commitments and Contingencies” to the condensed consolidated financial statements contained in Part I of this Form 10-Q, is incorporated herein by reference.

​

Item 1A. Risk Factors:

​

There have been no material changes to our risk factors during the three and six months ended June 30, 2019. For additional information on risk factors, refer to “Risk Factors” included in Part I, Item 1A of our Annual report on Form 10-K for the year ended December 31, 2018 filed with the SEC on March 1, 2019.

​

Item 2. Unregistered Sale of Equity Securities and Use of Proceeds:

​

SCC share repurchase program:

​

In 2008, the Company’s BOD authorized a $500 million share repurchase program that has since been increased by the BOD and is currently authorized to $3 billion. Pursuant to this program, the Company has purchased 119.5 million shares of common stock at a cost of $2.9 billion. These shares are available for general corporate purposes. The Company may purchase additional shares of its common stock from time to time, based on market conditions and other factors. This repurchase program has no expiration date and may be modified or discontinued at any time.

​

The NYSE closing price of SCC common shares at June 30, 2019 was $38.85 and the maximum number of shares that the Company could purchase at that price is 2.1 million shares.

​

As a result of the repurchase of shares of SCC’s common stock, Grupo Mexico’s direct and indirect ownership was 88.9% as of June 30, 2019. There has not been any activity in the SCC share repurchase program since the third quarter of 2016.

​

Item 4. Mine Safety Disclosures:

​

Not applicable.

​

​

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Item 6. Exhibits

​

| ​ |
--- | --- | ---
Exhibit No. | ​ | Description of Exhibit
​ | ​ | ​
3.1 | ​ | (a) Amended and Restated Certificate of Incorporation, filed on October 11, 2005. (Filed as Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q for the third quarter of 2005 and incorporated herein by reference). (b) Certificate of Amendment of Amended and Restated Certificate of Incorporation dated May 2, 2006. (Filed as Exhibit 3.1 to Registration Statement on Form S-4, File No. 333-135170) filed on June 20, 2006 and incorporated herein by reference). (c) Certificate of Amendment of Amended and Restated Certificate of Incorporation dated May 28, 2008. (Filed as Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q for the second quarter of 2008 and incorporated herein by reference).
​ | ​ | ​
3.2 | ​ | By-Laws, as last amended on January 27, 2011. (Filed as Exhibit 3.2 to the Company’s 2010 Annual Report on Form 10-K incorporated herein by reference).
​ | ​ | ​
4.1 | ​ | Indenture governing $200 million 6.375% Notes due 2015, by and among Southern Copper Corporation, The Bank of New York and the Bank of New York (Luxembourg) S.A. (Filed as Exhibit 4.1 to the Company’s Current Report on Form 8-K, filed on August 1, 2005 and incorporated by reference.
​ | ​ | ​
4.2 | ​ | (a) Indenture governing $600 million 7.500% Notes due 2035, by and among Southern Copper Corporation, the Bank of New York and The Bank of New York (Luxembourg) S.A. (Filed as Exhibit 4.2 to the Company’s Current Report on Form 8-K, filed on August 1, 2005) and incorporated herein by reference). (b) Indenture governing $400 million 7.500% Notes due 2035, by and between Southern Copper Corporation, The Bank of New York, The Bank of New York (Luxembourg) S.A.(Filed as Exhibit 4.2 to the Company’s Current Report on Form 8-K, filed on August 1, 2005 and incorporated herein by reference).
​ | ​ | ​
4.3 | ​ | Form of 6.375% Note (included in Exhibit 4.1).
​ | ​ | ​
4.4 | ​ | Form of New 7.500% Note (included in Exhibit 4.2(a)).
​ | ​ | ​
4.5 | ​ | Form of New 7.500% Note (included in Exhibit 4.2(b)).
​ | ​ | ​
4.6 | ​ | Indenture, dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which $400 million of 5.375% Notes due 2020 and $1.1 billion of 6.750% Notes due 2040 were issued (Filed as Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
​ | ​ | ​
4.7 | ​ | First Supplemental Indenture dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.375% Notes due 2020 were issued (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
​ | ​ | ​
4.8 | ​ | Second Supplemental Indenture, dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 6.750% Notes due 2040 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
​ | ​ | ​
4.9 | ​ | Form of 5.375% Notes due 2020 (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
​ | ​ | ​

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| ​ |
--- | --- | ---
Exhibit No. | ​ | Description of Exhibit
4.10 | ​ | Form of 6.750% Notes due 2040 (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
​ | ​ | ​
4.11 | ​ | Third Supplemental Indenture dated as of November 8, 2012, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 3.500% Notes due 2022 were issued (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
​ | ​ | ​
4.12 | ​ | Fourth Supplemental Indenture, dated as of November 8, 2012, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.250% Notes due 2042 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
| ​ |
4.13 | ​ | Form of 3.500% Notes due 2022. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
​ | ​ | ​
4.14 | ​ | Form of 5.250% Notes due 2042. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
​ | ​ | ​
4.15 | ​ | Fifth Supplemental Indenture dated as of April 23, 2015, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 3.875% Notes due 2025 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
​ | ​ | ​
4.16 | ​ | Sixth Supplemental Indenture, dated as of April 23, 2015, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.875% Notes due 2045 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
​ | ​ | ​
4.17 | ​ | Form of 3.875% Notes due 2025. (Filed as Exhibit A to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
​ | ​ | ​
4.18 | ​ | Form of 5.875% Notes due 2045. (Filed as Exhibit A to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
​ | ​ | ​
10.1 | ​ | Directors’ Stock Award Plan of the Company, as amended through January 28, 2023. (Filed as an exhibit to the Company’s 2018 Proxy Statement and incorporated herein by reference).
​ | ​ | ​
10.2 | ​ | Service Agreement entered into by the Company with a subsidiary of Grupo Mexico S.A.B. de C. V., assigned upon the same terms and conditions to Grupo Mexico S.A.B. de C.V. in February 2004 (Filed as Exhibit 10.10 to the Company’s 2002 Annual Report on Form 10-K and incorporated herein by reference).
​ | ​ | ​
10.3 | ​ | Agreement and Plan of Merger, dated as of October 21, 2004, by and among Southern Copper Corporation, SCC Merger Sub., Inc., Americas Sales Company, Inc., Americas Mining Corporation and Minera Mexico S.A. de C.V., (Filed as an Exhibit to Current Report on Form 8-K filed on October 22, 2004 and incorporated herein by reference).
​ | ​ | ​
10.4 | ​ | Tax Agreement entered into by the Company and Americas Mining Corporation, effective as of February 20, 2017.
​ | ​ | ​
14.0 | ​ | Code of Business Conduct and Ethics adopted by the Board of Directors on May 8, 2003 and amended on April 23, 2015. (Filed as Exhibit 14 to the Company’s Current Report on Form 8-K filed April 29, 2015 and incorporated herein by reference).

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| ​ |
--- | --- | ---
Exhibit No. | ​ | Description of Exhibit
​ | ​ | ​
15.0 | ​ | Consent of Registered Public Accounting Firm (Galaz, Yamazaki, Ruiz Urquiza, S.C. - Member of Deloitte Touche Tohmatsu, Limited) (filed herewith).
​ | ​ | ​
31.1 | ​ | Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
​ | ​ | ​
31.2 | ​ | Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
​ | ​ | ​
32.1 | ​ | Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C., Section 1350. This document is being furnished in accordance with SEC Release No. 33-8238.
​ | ​ | ​
32.2 | ​ | Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C., Section 1350. This document is being furnished in accordance with SEC Release No. 33-8238.
​ | ​ | ​
101.INS | ​ | XBRL Instance Document (submitted electronically with this report). The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
​ | ​ | ​
101.SCH | ​ | XBRL Taxonomy Extension Schema Document (submitted electronically with this report).
​ | ​ | ​
101.CAL | ​ | XBRL Taxonomy Calculation Linkbase Document (submitted electronically with this report).
​ | ​ | ​
101.DEF | ​ | XBRL Taxonomy Extension Definition Linkbase Document (submitted electronically with this report).
​ | ​ | ​
101.LAB | ​ | XBRL Taxonomy Label Linkbase Document (submitted electronically with this report).
​ | ​ | ​
101.PRE | ​ | XBRL Taxonomy Presentation Linkbase Document (submitted electronically with this report).

​

Attached as Exhibit 101 to this report are the following documents formatted in Inline XBRL (Inline Extensible Business Reporting Language): (i) the Condensed Consolidated Statement of Earnings for the three months ended June 30, 2019 and 2018; (ii) the Condensed Consolidated Statement of Comprehensive Income for the three months ended June 30, 2019 and 2018; (iii) the Condensed Consolidated Balance Sheet at June 30, 2019 and December 31, 2018; (iv) the Condensed Consolidated Statement of Cash Flows for the three months ended June 30, 2019 and 2018; and (v) the Notes to Condensed Consolidated Financial Statements tagged in detail. Users of this data are advised pursuant to Rule 406T of Regulation S-T that this interactive data file is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, and otherwise is not subject to liability under these sections.

​

​

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SOUTHERN COPPER CORPORATION

List of Exhibits

​

| ​ |
--- | --- | ---
Exhibit No. | ​ | Description of Exhibit
​ | ​ | ​
3.1 | ​ | (a) Amended and Restated Certificate of Incorporation, filed on October 11, 2005. (Filed as Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q for the third quarter of 2005 and incorporated herein by reference). (b) Certificate of Amendment of Amended and Restated Certificate of Incorporation dated May 2, 2006. (Filed as Exhibit 3.1 to Registration Statement on Form S-4, File No. 333-135170) filed on June 20, 2006 and incorporated herein by reference). (c) Certificate of Amendment of Amended and Restated Certificate of Incorporation dated May 28, 2008. (Filed as Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q for the second quarter of 2008 and incorporated herein by reference).
​ | ​ | ​
3.2 | ​ | By-Laws, as last amended on January 27, 2011. (Filed as Exhibit 3.2 to the Company’s 2010 Annual Report on Form 10-K incorporated herein by reference).
​ | ​ | ​
4.1 | ​ | Indenture governing $200 million 6.375% Notes due 2015, by and among Southern Copper Corporation, The Bank of New York and the Bank of New York (Luxembourg) S.A. (Filed as Exhibit 4.1 to the Company’s Current Report on Form 8-K, filed on August 1, 2005 and incorporated by reference.
​ | ​ | ​
4.2 | ​ | (a) Indenture governing $600 million 7.500% Notes due 2035, by and among Southern Copper Corporation, the Bank of New York and The Bank of New York (Luxembourg) S.A. (Filed as Exhibit 4.2 to the Company’s Current Report on Form 8-K, filed on August 1, 2005) and incorporated herein by reference). (b) Indenture governing $400 million 7.500% Notes due 2035, by and between Southern Copper Corporation, The Bank of New York, The Bank of New York (Luxembourg) S.A.(Filed as Exhibit 4.2 to the Company’s Current Report on Form 8-K, filed on August 1, 2005 and incorporated herein by reference).
​ | ​ | ​
4.3 | ​ | Form of 6.375% Note (included in Exhibit 4.1).
​ | ​ | ​
4.4 | ​ | Form of New 7.500% Note (included in Exhibit 4.2(a)).
​ | ​ | ​
4.5 | ​ | Form of New 7.500% Note (included in Exhibit 4.2(b)).
​ | ​ | ​
4.6 | ​ | Indenture, dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which $400 million of 5.375% Notes due 2020 and $1.1 billion of 6.750% Notes due 2040 were issued (Filed as Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
​ | ​ | ​
4.7 | ​ | First Supplemental Indenture dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.375% Notes due 2020 were issued (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
​ | ​ | ​
4.8 | ​ | Second Supplemental Indenture, dated as of April 16, 2010, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 6.750% Notes due 2040 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
​ | ​ | ​
4.9 | ​ | Form of 5.375% Notes due 2020 (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).

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| ​ |
--- | --- | ---
Exhibit No. | ​ | Description of Exhibit
​ | ​ | ​
4.10 | ​ | Form of 6.750% Notes due 2040 (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 19, 2010 and incorporated herein by reference).
​ | ​ | ​
4.11 | ​ | Third Supplemental Indenture dated as of November 8, 2012, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 3.500% Notes due 2022 were issued (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
​ | ​ | ​
4.12 | ​ | Fourth Supplemental Indenture, dated as of November 8, 2012, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.250% Notes due 2042 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference). ​
4.13 | ​ | Form of 3.500% Notes due 2022. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
​ | ​ | ​
4.14 | ​ | Form of 5.250% Notes due 2042. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on November 9, 2012 and incorporated herein by reference).
​ | ​ | ​
4.15 | ​ | Fifth Supplemental Indenture dated as of April 23, 2015, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 3.875% Notes due 2025 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
​ | ​ | ​
4.16 | ​ | Sixth Supplemental Indenture, dated as of April 23, 2015, between Southern Copper Corporation and Wells Fargo Bank, National Association, as trustee, pursuant to which the 5.875% Notes due 2045 were issued. (Filed as an Exhibit to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
​ | ​ | ​
4.17 | ​ | Form of 3.875% Notes due 2025. (Filed as Exhibit A to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
​ | ​ | ​
4.18 | ​ | Form of 5.875% Notes due 2045. (Filed as Exhibit A to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed on April 24, 2015 and incorporated herein by reference).
​ | ​ | ​
10.1 | ​ | Directors’ Stock Award Plan of the Company, as amended through January 28, 2023. (Filed as an exhibit to the Company’s 2018 Proxy Statement and incorporated herein by reference).
​ | ​ | ​
10.2 | ​ | Service Agreement entered into by the Company with a subsidiary of Grupo Mexico S.A.B. de C. V., assigned upon the same terms and conditions to Grupo Mexico S.A.B. de C.V. in February 2004 (Filed as Exhibit 10.10 to the Company’s 2002 Annual Report on Form 10-K and incorporated herein by reference).
​ | ​ | ​
10.3 | ​ | Agreement and Plan of Merger, dated as of October 21, 2004, by and among Southern Copper Corporation, SCC Merger Sub., Inc., Americas Sales Company, Inc., Americas Mining Corporation and Minera Mexico S.A. de C.V., (Filed as an Exhibit to Current Report on Form 8-K filed on October 22, 2004 and incorporated herein by reference).
​ | ​ | ​
10.4 | ​ | Tax Agreement entered into by the Company and Americas Mining Corporation, effective as of February 20, 2017. (Filed as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the first quarter of 2017 and incorporated herein by reference).
​ | ​ | ​

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| ​ |
--- | --- | ---
Exhibit No. | ​ | Description of Exhibit
14.0 | ​ | Code of Business Conduct and Ethics adopted by the Board of Directors on May 8, 2003 and amended on April 23, 2015. (Filed as Exhibit 14 to the Company’s Current Report on Form 8-K filed April 29, 2015 and incorporated herein by reference).
​ | ​ | ​
15.0 | ​ | Consent of Registered Public Accounting Firm (Galaz, Yamazaki, Ruiz Urquiza, S.C. - Member of Deloitte Touche Tohmatsu, Limited) (filed herewith).
​ | ​ | ​
31.1 | ​ | Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
​ | ​ | ​
31.2 | ​ | Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith).
​ | ​ | ​
32.1 | ​ | Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C., Section 1350. This document is being furnished in accordance with SEC Release No. 33-8238.
​ | ​ | ​
32.2 | ​ | Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C., Section 1350. This document is being furnished in accordance with SEC Release No. 33-8238.
​ | ​ | ​
101.INS | ​ | XBRL Instance Document (submitted electronically with this report). The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
​ | ​ | ​
101.SCH | ​ | XBRL Taxonomy Extension Schema Document (submitted electronically with this report).
​ | ​ | ​
101.CAL | ​ | XBRL Taxonomy Calculation Linkbase Document (submitted electronically with this report).
​ | ​ | ​
101.DEF | ​ | XBRL Taxonomy Extension Definition Linkbase Document (submitted electronically with this report).
​ | ​ | ​
101.LAB | ​ | XBRL Taxonomy Label Linkbase Document (submitted electronically with this report).
​ | ​ | ​
101.PRE | ​ | XBRL Taxonomy Presentation Linkbase Document (submitted electronically with this report).

​

Attached as Exhibit 101 to this report are the following documents formatted in Inline XBRL (Inline Extensible Business Reporting Language): (i) the Condensed Consolidated Statement of Earnings for the three months ended June 30, 2019 and 2018; (ii) the Condensed Consolidated Statement of Comprehensive Income for the three months ended June 30, 2019 and 2018; (iii) the Condensed Consolidated Balance Sheet at June 30, 2019 and December 31, 2018; (iv) the Condensed Consolidated Statement of Cash Flows for the three months ended June 30, 2019 and 2018; and (v) the Notes to Condensed Consolidated Financial Statements tagged in detail. Users of this data are advised pursuant to Rule 406T of Regulation S-T that this interactive data file is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, and otherwise is not subject to liability under these sections.

​

​

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PART II — OTHER INFORMATION

​

SIGNATURES

​

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

​

​ |
​ | SOUTHERN COPPER CORPORATION
​ | (Registrant)
​ | ​
​ | ​
​ | /s/ Oscar Gonzalez Rocha
​ | Oscar Gonzalez Rocha
​ | President and Chief Executive Officer
​ | ​
July 25, 2019 | ​
​ | ​
​ | ​
​ | /s/ Raul Jacob
​ | Raul Jacob
​ | Vice President, Finance, Treasurer and Chief Financial Officer
​ | ​
July 25, 2019 | ​

​

​

​

68