Two weeks after Huawei was put on a blacklist that prevents US suppliers from selling components to the telecoms company, companies across the world are still working out the ramifications.

Last week, Huawei told the Financial Times that the Trump administration’s decision to put the company on its “entity list” would affect about 1,200 US suppliers. Huawei bought roughly $11bn in components and services from US companies last year.

The ban has had significant consequences for Huawei’s suppliers. As well as preventing US companies from selling directly to Huawei, it also stops third-party companies from selling products with more than one-quarter US-originated technology to Huawei. Analysts say companies are likely to dispute what products fall under the re-sale ban.