The big four providers insist on a combined majority stake and also want a review of the pricing model and network access plan offered by the agency

Technology giant Tencent will invest 500 billion yuan ($70 billion) over the next five years on its digital rollout of more new infrastructure.

More than 30 tech and telecom firms unveiled an alliance on Tuesday to press for "open and interoperable" 5G wireless systems that eliminate the need for a single supplier.