Leshan is the birthplace of Tongwei's high-purity polysilicon. The Yongxiang Co., Ltd. Sichuan Leshan Base now encompasses Yongxiang New Energy, Yongxiang Energy Technology, Yongxiang Photovoltaic Technology, Yongxiang Polysilicon, Yongxiang Resin, Yongxiang Silicon Materials, Yongxiang Polysilicon (New Materials), and Tongwei Green. Together, these companies form a complete circular economy industrial chain that integrates chemical and new energy sectors, achieving increased efficiency, reduced consumption, and low-carbon development.

The Inner Mongolia Baotou Base, built upon Yongxiang Co., Ltd.'s first high-purity polysilicon company outside Sichuan, Inner Mongolia Tongwei now includes Inner Mongolia Tongwei, Tongwei Silicon Energy (Inner Mongolia), and Tongwei Green Materials (Inner Mongolia). These companies have injected significant momentum into Baotou's development as a world-leading green silicon hub.

As a major investment project in Yunnan Province, the first phase of Yunnan Tongwei, from groundbreaking to production, took 355 days, setting a new record for the fastest project construction in the industry. On May 1, 2024, the world's largest single-unit production project, Yunnan Tongwei's second phase 200,000-ton high-purity polysilicon project, successfully started up in one go. The first batch of products was successfully produced and passed quality testing, with all indicators meeting N-type electronic grade standards and a purity of 99.999999999%. With the full production of Yunnan Tongwei's second phase 200,000-ton project, Tongwei's annual production capacity of high-purity polysilicon will reach 650,000 tons, further solidifying its position as the global leader in high-purity polysilicon.