Guangdong Jingyi Metal (SHE:002295) said that it has not engaged in unfair information disclosure practices that could have caused a spike in its stake, according to a Shenzhen bourse disclosure on Friday.
The Chinese copper processing equipment manufacturer's cumulative closing price hiked by 23.6% from Tuesday, Sept. 23, to Thursday, Sept. 25.
The company's shares soared 10% at the close.