Tongwei Co., Ltd. is a diversified company. Net sales (before elimination of intragroup sales) are divided as follows: - production of photovoltaic cells and modules (35.7%); - production of animal feeds (35.2%): in particular, feeds for fish, pigs and poultry. In addition, the group is developing its activity into fish farming; the distribution of veterinary products and food additives; and the sale of fish-, pork- and poultry-based food products; - production of polysilicon, monocrystalline silicon and chemicals for solar cell manufacture (26.8%); - operation of photovoltaic power plants (2.3%); 90.2% of the net sales (before elimination of intragroup sales) are conducted in China.