On September 9, 2021, Traffic Control Technology Co., Ltd. (SHSE:688015) closed the transaction. The transaction included participation from Beijing Infrastructure Investment Co.,Ltd. for 6,997,900 shares for CNY 199,999,982.00, Advanced Manufacturing Industrial Investment Fund Phase II (Limited Partnership) for 5,314,905 shares for CNY 151,899,984.90, Guotou China Merchant Investment Management Co., Ltd., Beijing-Tianjin-Hebei Industrial Cooperative Development Investment Fund for 3,498,950 shares for CNY 99,999,991.00, Caitong Fund Management Co., Ltd. for 2,547,235 shares for CNY 72,799,976.30, China Asset Management Co., Ltd. for 2,099,370 shares for CNY 59,999,994.60, UBS Investment Bank, Investment Arm for 1,749,475 shares for CNY 49,999,995.50, Guosen Securities Co., Ltd. (SZSE:002736) for 1,049,685 shares for CNY 29,999,997.30 , Huatai Securities Co., Ltd. (SHSE:601688) for 1,049,685 shares for CNY 29,999,997.30, Kong Qingfei for 874,737 shares for CNY 24,999,983.46, Zhang Ou for 874,737 shares for CNY 24,999,983.46, Zhang Jianfei for 535,343 shares for CNY 15,300,102.94. Pursuant to the transaction, Beijing Infrastructure Investment Co.,Ltd.'s stake increased from 16.66% to 17.14%, Advanced Manufacturing Industrial Investment Fund Phase II for 3.75%, and Beijing-Tianjin-Hebei Industrial Cooperative Development Investment Fund for 1.88% stake.