FAP, April 18 / PRNewswire-FirstCall-Asianet /-- Nanbo An announced that it recently signed a long silicon single sales contract with a customer; from April 2023 to December 2028, the company expects to sell a total of 100000 tons of solar-grade primary polysilicon to the other party. If calculated according to the current market price (based on the average price of polysilicon densifier newly released by PVInfoLink), the total sales volume from April 2023 to December 2028 is expected to be 19.7 billion yuan (including tax).