A group of Republican lawmakers added pressure on America’s securities regulator to investigate Chinese companies listed on US exchanges, citing losses sustained by Didi Chuxing shareholders as a result of a probe of the company launched by Beijing, while a bipartisan bill was introduced in the Senate targeting Huawei Technologies Co. and ZTE . Tom Cotton of Arkansas, Rick Scott of Florida, and Alaska’s Dan Sullivan are among seven Republican senators pressing Securities and Exchange Commission (SEC) Chair Gary Gensler to initiate “robust” investigations of US-listed Chinese companies, the US financial firms that underwrote their initial public offerings and companies…