Huawei Technologies poured more than a quarter of its first-half revenue into research and development, prioritising long-term technological independence over short-term earnings as first-half profit plunged 36 per cent. R&D expenses jumped 25 per cent year on year to 121.4 billion yuan (US$18 billion) for the six months through June, accounting for over 25 per cent of total revenue, according to a filing on Monday with the Shanghai Clearing House, the primary central clearing counterparty in...