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SUBSEQUENT EVENTS: | 6 Months Ended
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Jun. 30, 2019
SUBSEQUENT EVENTS: | 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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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 855 -URI http://asc.fasb.org/topic&trid=2122774 + Details
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