Huawei Technologies have replaced more than 13 000 parts in its products that were hit by US trade sanctions, the Chinese tech giant’s founder said, according to a speech transcript posted on Friday by a Chinese university. According to the transcript of the February speech posted by Shanghai Jiao Tong University, Ren Zhengfei said Huawei had over the past three years replaced the 13 000 components with domestic Chinese substitutes and had redesigned 4 000 circuit boards for its products.