Tensions have resurfaced between the US and China over Huawei's AI chips after efforts to de-escalate trade war.China threatens legal action against enforcing US export restrictions on Huawei's AI chips.This response was prompted by the Trump administration's guidelines released on May 13 regarding the use of Huawei's Ascend AI chips.US Commerce Department amended its original guidance by removing the phrase 'anywhere in the world' following China's objections.