In April 2008, the leader of Shanxi Yaxin Coal Coking Co., Ltd. visited Shanghai Wuzheng Engineering Technology Co., Ltd., negotiated and signed the “coal asphalt comprehensive utilization construction 100,000 tons/year asphalt refining and 200,000 tons/year high carbon material project feasible. Sex research report contract. The 100,000 tons/year asphalt refining process technology uses the proprietary technology of Shanghai Wuzheng Engineering Technology Co., Ltd. The project plans to invest hundreds of millions of yuan to build a Sino-foreign joint venture. The project feasibility study report has been completed and the project is in the process of approval. After the implementation of the project, it is the first high-grade coal tar pitch refining project in China. All the products are exported, which will definitely play a demonstration role in the deep processing of domestic coal tar pitch.