For example, the Huawei Optical Factory project in Wuhan, Huawei's first domestic chip factory with a total investment of 1. 8 billion yuan, is located in the center of Wuhan's Optical Valley, with a total floor area of 208,900 square meters, and the construction content includes. HISILICON is building optical chip factories in several places in China. The plant was built by China Construction Eighth. Shenzhen: This city is the heart of Huawei's operations. The company's headquarters and several manufacturing plants are located here. Dongguan: Another. This new facility, a state-of-the-art R&D and manufacturing centre will be located in the heart of the UK's 'Silicon Fen' and focus on researching, developing, and manufacturing optoelectronics products. The project is said to be spread across 208,900 sq.