Section 776（b） of the Act provides that, in selecting from among the facts available, the Department may employ adverse inferences if an interested party fails to cooperate by not acting to the best of its ability to comply with requests for information. We find that, because the PRC-wide entity and certain producers/ exporters did not respond at all to our request for information, they have failed to cooperate to the best of their ability. Therefore, the Department preliminarily finds that, in selecting from among the facts available, an adverse inference is appropriate.