ByteDance's Douyin emerges as fast-rising rival to e-commerce giants Alibaba, JD and PDD - Alibaba's Taobao, ByteDance's Douyin seek e-commerce price war detente with new policies - ByteDance-owned Douyin said to miss first-half e-commerce sales goal amid weak consumption - Huawei's HarmonyOS gears up for faster expansion on back of major apps WeChat and Douyin - TikTok automatically tags external AI-generated content as Chinese version Douyin works on similar standard - China enlists Tencent, Weibo and Douyin to protect state secrets - ByteDance-owned Douyin launches stand-alone shopping app in China, heating up the competition against Alibaba, JD.com, PDD