辉隆股份：全资公司海华科技以一体化产业链为主

Group 1 - The core viewpoint of the article is that Huillong Co., Ltd. has the capability to independently synthesize key aromatic amine raw materials through its wholly-owned subsidiary Haihua Technology, which focuses on an integrated industrial chain [2] - Haihua Technology produces all of its key raw materials, including ortho/para-aminobenzyl ether and meta-chlorobenzene amine, in-house [2]