国光股份：截至今年6月底，我国共有植物生长调节剂登记企业500余家

Group 1 - The core point of the article is that Guoguang Co., Ltd. holds the largest number of plant growth regulator registration certificates in China, with a total of 150 certificates, representing 7.9% of all certificates and 20.5% of the certificates held by the top 35 companies in the industry [1] Group 2 - As of the end of June this year, there are over 500 registered companies for plant growth regulators in China, with approximately 1,900 effective registered products, of which about 1,660 are formulations, accounting for 3.79% of the total pesticide product registrations [1] - There are 35 companies that hold 10 or more registration certificates, collectively holding 730 certificates [1]