KUALA LUMPUR: Hengyuan Refining Company Bhd has been issued an unusual market activity (UMA) query on the recent sharp rise in its share price.

At 12.45pm, the group’s share price was up 93 sen or 13.5% at RM7.83. 

The group, formerly known as Shell Refining Company (Federation of Malaya) Bhd, said in an announcement to the stock exchange on Monday that investors were advised to take note of the company’s reply to the query, which will be posted at Bursa Malaysia’s website, when making their investment decision.