https://www.reuters.com/article/us-ebang-intl-hldg-hindenburg/short-seller-hindenburg-takes-aim-at-ebang-shares-slump-idUSKBN2BT1O6 >Short-seller Hindenburg Research said on Tuesday it was going short on Ebang International Holdings Inc, sending the Chinese bitcoin mining machine producer's shares down nearly 10% in premarket trade.