As at 4 September, the company's share had surged over 195% to 6.5 cents.
The Singapore Exchange Regulation (SGX) requested China Mining International to disclose any relevant information and confirm compliance with listing rules, particularly Mainboard Rule 703, which requires issuers to announce material developments related to the company or its subsidiaries.
The SGX submitted this query following unusual price and volume movements in its shares.
In a bourse filing, China Mining International stated it had no undisclosed information and was unaware of any explanation for the trading activity, affirming its compliance with the listing rules.
As of 4 September, the company's shares had surged over 195% to 6.5 cents, up from the previous closing price of 2.2 cents.