In the early hours of August 2, trump announced on his twitter account that he would impose an additional 10 percent tariff on the remaining $300 billion of Chinese goods to the United States on September 1.However, Mr Trump said constructive talks with China on a comprehensive trade deal would continue and the future for both countries would be very bright.

The $300 billion list includes 3,805 tariff codes, covering almost everything but the $34 billion, $16 billion and $200 billion that have already been slapped in the first two rounds.Only pharmaceuticals, bulk drugs, some medical supplies, rare earths and key minerals were excluded.

According to the author's statistics, the lighting products included in the catalogue of this round of additional tariffs exported to the us in 2018 exceeded us $2 billion, accounting for 18.2% of China's total lighting products exported to the us in 2018.The largest item is LED replacement light source with HS code 85395000, which has a total export value of us $1.768 billion in 2018.