SEG Solar has announced plans to build a 3GW ingot and wafer manufacturing facility in Batang Regency, Indonesia, as phase I of a total 5GW ingot and wafer production expansion, the new investment marking a key step in the company’s strategy to establish a fully integrated, non-FEOC supply chain supporting the U.S. solar market, while further advancing the development of the SEG Indonesia PV Industrial Park.
As part of the development, the new facility is expected to involve an investment of some USD 80 million, fully funded by SEG, and will cover a site area of 50,000 square metres. Production is scheduled to commence in Q3 2026, further reinforcing the company’s upstream manufacturing capabilities and enhancing the resilience of its global capacity planning.
SEG already operates a module facility in the U.S. and a solar cell manufacturing facility in Indonesia, forming the foundation of its vertically integrated production platform. With the addition of the new 3GW ingot and wafer facility, the company will establish an end-to-end manufacturing chain, from ingots and wafers to solar cells and completed modules.
Founder and CEO of PT SEG Solar Manufaktur, Jun Zhuge, commented: “Developing upstream ingot and wafer capacity is essential to completing SEG’s integrated manufacturing system. With complementary production capabilities in the United States and Indonesia, SEG is positioned to deliver a fully traceable and non-FEOC supply chain that meets both current and upcoming requirements for the U.S. solar industry.”