南玻Ａ：公司青海高纯晶硅项目采用改良西门子法，技术水平处于行业先进水平

Group 1 - The core viewpoint of the article is that the Qinghai high-purity silicon project has commenced trial production and possesses significant technical advantages [2][3] - The company, Nanfang Glass (南玻Ａ), stated that the project utilizes an improved Siemens process, which is at an advanced level within the industry [2]