What is the fine-grained topic of the following text: January 28, 2016 Lehigh Valley, Pa.
Air Products (NYSE: APD), a world-leading industrial gases company, today announced its four air separation unit (ASU) trains built for Shaanxi Future Energy Chemical Co., Ltd. in Yulin City, Shaanxi Province, China, have been brought fully onstream. Only return the topic.
Air Products' air separation units for Shaanxi Future Energy Chemical Co. in China becoming fully operational