Chinese tech giant Huawei is working to rebuild its consumer business after U.S. sanctions caused the division's revenue to halve. Amid a slowdown in the smartphone and automotive markets, Huawei's consumer business has chosen to focus on phones equipped with self-developed chips. According to CNBC calculations, deliveries of Huawei-backed electric vehicles fell 29% year-on-year in September, marking the third consecutive month of decline. Meanwhile, China's smartphone market has also seen a sales decline this year.