中国中化集团增资至约487.6亿元，增幅约12%

Group 1 - The core point of the article is that China National Chemical Corporation has increased its registered capital from approximately 43.4 billion RMB to about 48.76 billion RMB, representing an increase of around 12% [1] - The company underwent changes in some key personnel alongside the capital increase [1] - China National Chemical Corporation was established in August 1981 and its legal representative is Li Fanrong, with business operations including oil and gas technology services, deep-sea oil drilling equipment sales, and fertilizer sales [1] Group 2 - The company is wholly owned by China National Chemical Holding Co., Ltd. [1]