Income Taxes	6 Months Ended
Jun. 30, 2018
Income Taxes
Income Taxes	6. Income Taxes The Company recorded income tax expense of $1.8 million and $5.4 million for the three and six months ended June 30, 2018, respectively. For the three and six months ended June 30, 2017, the Company recorded income tax expense of $0.9 million and $3.9 million, respectively. The Company’s annualized effective rate differs from the U.S. corporate rate of 21% primarily due to differences in statutory rates for income and mining taxes in Mexico. On December 22, 2017, the U.S. government enacted comprehensive tax legislation (the “Tax Act”), which significantly revised the U.S. corporate income tax law by lowering the U.S. federal corporate income tax rate from 35% to 21%, implementing a territorial tax system, imposing a one-time tax on foreign unremitted earnings and setting limitations on deductibility of certain costs, among other things. The Company has not revised any of the 2017 provisional estimates under SAB No. 118 and ASU No 2018-05. The Company continues to gather information and is awaiting further guidance from the IRS, SEC and FASB on the Tax Act. The Company periodically transfers funds from its Mexican wholly-owned subsidiary to U.S. in the form of dividends. Mexico requires a 10% withholding tax on dividends to foreign parent companies on all post-2013 earnings. Dividends from earnings generated prior to 2014 were exempted from the new dividend withholding tax. The Company plans to distribute post-2013 earnings from Mexico beginning in 2018. According to the existing U.S. – Mexico tax treaty, the dividend withholding tax between these countries is limited to 5% if certain requirements are met. Based on the Company’s review of these requirements, it estimates it will pay a 5% withholding tax on dividends received from Mexico in 2018. The impact of the planned annual dividends for 2018 is reflected in the estimated annual effective tax rate. In 2015, the Mexican government approved a 2016 Federal Revenue Act that provides tax incentives, including tax credits on Mexican Excise Duty (a.k.a., IEPS), for the acquisition of combustible fossil fuels to be used in productive processes. The Company’s Mexican operations utilize a significant amount of diesel fuel for power generation that qualifies for such tax credits. These tax credits can be applied against income taxes payable, as well as other income tax withholdings during the year. In the three and six months ended June 30, 2018, the Company recorded $1.1 million and $2.1 million, respectively, of fuel tax credits. For the three and six months ended June 30, 2017, the Company recorded $0.9 million and $1.6 million, respectively, of fuel tax credits. These fuel tax credits were used to offset production costs and such credits were applied against the income tax payable. As of June 30, 2018, the Company believes that it has no liability for uncertain tax positions.

6. Income Taxes

The Company recorded income tax expense of $1.8 million and $5.4 million for the three and six months ended June 30, 2018, respectively. For the three and six months ended June 30, 2017, the Company recorded income tax expense of $0.9 million and $3.9 million, respectively. The Company’s annualized effective rate differs from the U.S. corporate rate of 21% primarily due to differences in statutory rates for income and mining taxes in Mexico.

On December 22, 2017, the U.S. government enacted comprehensive tax legislation (the “Tax Act”), which significantly revised the U.S. corporate income tax law by lowering the U.S. federal corporate income tax rate from 35% to 21%, implementing a territorial tax system, imposing a one-time tax on foreign unremitted earnings and setting limitations on deductibility of certain costs, among other things. The Company has not revised any of the 2017 provisional estimates under SAB No. 118 and ASU No 2018-05. The Company continues to gather information and is awaiting further guidance from the IRS, SEC and FASB on the Tax Act.

The Company periodically transfers funds from its Mexican wholly-owned subsidiary to U.S. in the form of dividends. Mexico requires a 10% withholding tax on dividends to foreign parent companies on all post-2013 earnings. Dividends from earnings generated prior to 2014 were exempted from the new dividend withholding tax. The Company plans to distribute post-2013 earnings from Mexico beginning in 2018. According to the existing U.S. – Mexico tax treaty, the dividend withholding tax between these countries is limited to 5% if certain requirements are met. Based on the Company’s review of these requirements, it estimates it will pay a 5% withholding tax on dividends received from Mexico in 2018. The impact of the planned annual dividends for 2018 is reflected in the estimated annual effective tax rate.

In 2015, the Mexican government approved a 2016 Federal Revenue Act that provides tax incentives, including tax credits on Mexican Excise Duty (a.k.a., IEPS), for the acquisition of combustible fossil fuels to be used in productive processes. The Company’s Mexican operations utilize a significant amount of diesel fuel for power generation that qualifies for such tax credits. These tax credits can be applied against income taxes payable, as well as other income tax withholdings during the year. In the three and six months ended June 30, 2018, the Company recorded $1.1 million and $2.1 million, respectively, of fuel tax credits. For the three and six months ended June 30, 2017, the Company recorded $0.9 million and $1.6 million, respectively, of fuel tax credits. These fuel tax credits were used to offset production costs and such credits were applied against the income tax payable.

As of June 30, 2018, the Company believes that it has no liability for uncertain tax positions.