青山纸业(600103.SH)：公司子公司恒宝通与美国博通存在业务往来

Group 1 - The core point of the article is that Qingshan Paper (600103.SH) has business dealings with Broadcom in the United States through its subsidiary Hengbao Tong [1] Group 2 - Qingshan Paper confirmed the existence of business interactions with Broadcom on an investor interaction platform [1]