American electronics retailer Best Buy will no longer sell Chinese manufacturer Huawei’s phones. That may be due to a combination of factors including increased costs from forthcoming section 301 tariffs on Chinese goods, and possibly security concerns. The latter may partly have been a reason for AT&T’s earlier decision to break its 5G development relations with Huawei. Best Buy’s move isn’t the end of the world for Huawei. U.S. exports from China accounted for just 3% of the total in 2017 after experiencing a 19% decline vs. 2016. It will become more reliant on the EU (30% of the total...