Pharmaceutical Supply Chain Security Act This bill directs certain agencies to report on and reduce the role of China in pharmaceutical supply chains. Specifically, the Food and Drug Administration must report on pharmaceutical products and ingredients for which China supplies more than 20% of the quantities available in the United States. In addition, the President must develop a strategy to address the role of China in the global pharmaceutical supply chain and related threats to national security. The United States International Development Finance Corporation must also support manufacturing projects that promote the security of pharmaceutical supply chains, reduce reliance on China, and foster cooperation with other countries.