https://www.reuters.com/article/singles-day-alibaba/alibabas-singles-day-sales-grow-just-8-5-slowest-pace-ever-idUSKBN2HV28T >Alibaba Group Holding Ltd said on Friday that sales during its annual Singles' Day shopping frenzy grew 8.5%, the slowest rate ever, underscoring strong regulatory and supply chain headwinds for China's tech firms.