Singapore Exchange Regulation (SGX RegCo) has issued a query to specialist engineering service provider Acromec, after the counter spiked 73.7% on Aug 11, at around 10.45am on the back on unusually high trading volume.

SGX RegCo issued a statement at 10.44am, asking the company to reveal if it is aware of any information not previously announced that could explain the unusual volume movements in its shares.

Acromec jumped to 17 cents from 9.5 cents, before reaching a high of 20 cents at 11am.

As at 4.24pm, shares in Acromec are trading 106.9% up, at 18 cents, with some 24.6 million shares changed hands.

On average, over the past three months, the counter on saw trading volumes of around 5.5 million shares per month.