Tencent Holdings jumped the most in two weeks after White House officials are said to have reassured American businesses that a ban on its WeChat app won’t be as broad as feared.

The WeChat owner jumped as much as 4.2% in Hong Kong on Monday after people familiar with matter said the Trump administration is privately seeking to reassure US companies including Apple that they can still do business with Tencent’s WeChat messaging app in China. In recent days, senior administration officials have been reaching out to some companies, realising that the impact of an all-out ban on the popular app could be devastating for US technology, retail, gaming, telecommunications and other industries, according to the people.

Company management earlier this month sought to reassure investors that the executive order signed by President Donald Trump on 6 August may apply only to WeChat’s overseas operations. The ban, which came amid efforts by the White House to curtail the rise of Chinese-owned technology giants like Huawei Technologies and TikTok owner ByteDance, had erased roughly US$66-billion from Tencent’s value, though today’s rebound means the stock has recouped all but $20-billion of those losses.

Trump ignited a furor after signing the order to ban US entities from dealing with WeChat. Confusion reigned as investors grappled with the sweeping language of Trump’s order — which bars “transactions” with the Chinese company — that leaves the door open for the administration to extend it well beyond the service in America. Apple’s shares fell on fears the action could hurt sales of iPhones in its largest market after the US.

Still, risks remain until details of the executive order are finalised. Senior administration officials are deliberating over the scope of the ban ordered by Trump, one of the people said, and the president could ultimately overrule anything they decide. — Reported by Zheping Huang and Shiyin Chen, (c) 2020 Bloomberg LP