On January 18, 2017, the Department of Commerce (Commerce) announced its affirmative final determinations in the antidumping duty (AD) and countervailing duty (CVD) investigations of imports of certain amorphous silica fabric from the People’s Republic of China (China). Commerce found that dumping has occurred by mandatory respondents ACIT (Pinghu) Inc. and Nanjing Tianyuan Fiberglass Material Co., Ltd. (Nanjing Tianyuan) at a dumping margin of 162.47 percent. The dumping margins for mandatory respondents ACIT (Pinghu) Inc. and Nanjing Tianyuan were based on adverse facts available (AFA) as a result of each respondent’s failure to cooperate to the best of its ability in the investigation. The margin of 162.47 percent was based on the preliminary calculated margin for ACIT (Pinghu) Inc., which was higher than any rate provided in the petition, and was, therefore, assigned to both ACIT (Pinghu) Inc. and Nanjing Tianyuan as AFA for the final determination. Commerce also assigned a final dumping margin of 162.47 percent for the China- wide Entity.