London (CNN Business) 1. Huawei sales: Chinese tech giant Huawei reported Monday that its sales jumped 39% to 179.7 billion yuan ($26.8 billion) in the first quarter.

The private company did not reveal its profits, but it did say that its net profit margin had increased slightly to 8%.

Apple AAPL Huawei sells more telecommunications equipment than any other company in the world, and its smartphone business is growing faster than that of Samsung or

But it has come under intense pressure from a US campaign to curb its ambitions to become the global leader of next generation wireless technology, or 5G.

Huawei touted its 5G business in its statement on Monday, saying it has signed 40 commercial contracts for 5G with leading global carriers.