KBC announced that it signed a long-term cooperation framework agreement with JinkoSolar on January 21, 2021 and reached cooperation intention on the company's long-term supply of carbon/carbon composite products to JinkoSolar. The two parties agree that from the signing date of the agreement to December 31, 2022, JinkoSolar shall purchase the carbon/carbon products in the crystal pulling thermal field such as carbon/carbon crucible, draft tube, insulation tube and crucible holder, and the estimated total amount of the agreement is about 400 million (61.92 million US dollars) (tax included).