SINGAPORE, April 3 (Reuters) -
Japanese rubber futures hit a near three-week low on Thursday, after U.S. President Donald Trump announced a sweeping set of tariffs, dampening the global demand outlook while widening the trade war.
The Osaka Exchange (OSE) September rubber contract JRUc6, 0#2JRU: was down 1.6%, at 339.3 yen ($2.30) per kg, as of 0221 GMT.
Earlier in the session, prices hit 338.6 yen, the lowest since March 14.
The May rubber contract on the Shanghai Futures Exchange (SHFE) SNRv1 shed 1.6%, to 16,560 yuan ($2,267.41) per metric ton.
The most active May butadiene rubber contract on the SHFE SHBRv1 fell 0.73%, to 13,625 yuan ($1,865.54) per ton.
Trump on Wednesday unveiled a 10% minimum tariff on most goods imported to the U.S., with much higher duties on products from dozens of countries, worsening a trade war that threatens to drive up inflation and stall U.S. and worldwide economic growth.
Chinese imports will be hit with a 34% tariff, bringing the total new levy to 54%, causing Chinese stocks to slump.
Meanwhile, Trump's 25% auto tariffs, kicking in April 3, will cover hundreds of billions of dollars worth of imports of vehicles and auto parts imports annually.
Automobile sales could influence the intensity of automobile manufacturing, which involves using rubber-made tyres.
The yen JPY=EBS strengthened nearly 1% to 147.99 per dollar.
A stronger currency makes yen-denominated assets less affordable to overseas buyers. FRX/
Japan's Nikkei .N225 share average slumped to an eight-month low, further weighing on sentiment.
Still, dry weather in Yunnan has slowed down domestic rubber production, said broker Hexun Futures in a note.
The front-month rubber contract on Singapore Exchange's SICOM platform for May delivery STFc1 last traded at 188 U.S. cents per kg, down 2.6%.
($1 = 147.6800 yen)
($1 = 7.3035 Chinese yuan)