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Crude oil prices plunged worldwide as demand fell, and US prices turned negative for the first time in history two weeks ago as supply exceeded storage capacity in Cushing, Oklahoma, a key pipeline junction.

Customs officers seized more than 160 metric tons of smuggled bird nests worth about 2 billion yuan (8.51 million) in a special operation.

Customers are encouraged to leave cardboard packing materials at dispatch points and delivery stations. Courier staff will help sort out plastic bags, which are residual waste, while cartons are recyclable waste.

Cubans have often had to apply for a US visa in nearby Guyana since then, which is more costly for the Cubans.

Cristina Qu, vice-president of the public affairs and communications department at Huawei, said the company's name often reminds people of its cutting-edge smartphones. However, as a world-leading information and communications technology company, Huawei has a mission and responsibility that goes far beyond offering consumers smartphones.