In 2021, the proportion of the company's top five suppliers' purchase amount increased from 58% in 2020 to even 64%. The concentration is quite high and continues to increase. Will it weaken the company's purchasing bargaining power? The company has a large amount of prepayments for a long time. Does it mean that the company is usually in a weak position in terms of purchasing pricing? Can the supply chain be guaranteed to be stable and secure? Have you considered diversifying the supply chain?

Changying Credit: Hello investors, in 2021, the company's procurement scale has increased significantly compared with 2020 due to the continued rise in prices of bulk materials such as steel. Under the same conditions, the prepayment method also provides practical guarantees and scale effects for the company's supply. In addition, the company's top five suppliers are mainly bulk raw material manufacturers, all of which are high-quality suppliers. We have established strategic partnerships, which provide long-term guarantees for the company's sustainable development. Thank you!