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INCOME TAXES: | 6 Months Ended
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Jun. 30, 2012
INCOME TAXES: |
INCOME TAXES: |
NOTE 4 — INCOME TAXES: The income tax provision and the effective income tax rate for the first six months of 2012 and 2011 were as follows ($ in millions):
|  | 2012 |  | 2011 |
Income tax provision |  | $ | 628.7 |  | $ | 540.0 |
Effective income tax rate |  | 35.1 | % | 32.1 | %
These provisions include income taxes for Peru, Mexico and the United States. The increase in the effective tax rate in the first six months of 2012 from the tax rate in the 2011 period is principally caused by the new special mining tax in Peru, see below, and by the increase in dividends remitted from Mexico in 2012, which required a supplemental provision for U.S. income tax. For United States federal income tax reporting the operating results of SCC are included in the Americas Mining Corporation (“AMC”) U.S. federal income tax return. In accordance with paragraph 30-27 of ASC 740-10-30, current and deferred taxes are allocated to members of the AMC group as if each were a separate taxpayer. SCC provides current and deferred income taxes as if it was a separate filer. Special Mining Tax In September 2011, the Peruvian government enacted a new tax for the mining industry. This tax is based on operating income and its rate ranges from 2% to 8.4%. It begins at 2% for the first 10% of operating income and for each additional 5% of operating income is increased by 0.4% until 85% of operating income is reached. The Company has accrued $28.4 million for the special mining tax and is included as part of the income tax provision for the first six months of 2012. Accounting for Uncertainty in Income Taxes: The Company files tax returns in Peru, the United States and in Mexico. These tax returns are examined by the tax authorities of those countries. It is reasonably possible that during the next 12 months there could be an increase of approximately $30 to $50 million in the Company’s unrecognized tax benefits due to expected activity from tax examinations and audits by the tax authorities.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 136, 172 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43, 44, 45, 46, 47, 48, 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 + Details
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