https://www.reuters.com/article/tencent-stocks/young-chinese-gamers-vent-at-beijings-new-rules-as-shares-in-gaming-companies-slide-idUSKBN2FW041 >(Reuters) -China's new rules forbidding under-18s from playing video games for more than three hours a week knocked shares in Tencent Holdings Ltd and other gaming companies, while young players took to social media to express their outrage.