Mainland tourists seek out US goods in Hong Kong amid trade war, but few buy: retailers / Hong Kong consumers hit with higher prices for foreign goods as tariffs loom / Hong Kong retail sales fall 12 straight months as Shenzhen rivalry stings / First Hong Kong e-commerce festival to help city brands expand into mainland China to be held / Hong Kong customs seizes HK$40 million worth of refrigerants, perfume vials, lighters in US-bound shipment