Sinopec Shanghai Petrochemical (HKG:0338, SHA:600688) tapered expectations around its T1000 grade high-performance carbon fiber following media reports about the product.

In a Hong Kong bourse filing Thursday, the firm said the carbon fiber referenced in the reports is a 12K small tow, which is yet to generate revenue or contribute meaningfully once it makes sales.

The announcement came after the firm took note of the closing price of its A shares over three consecutive trading days ending June 4, during which its stock price rose by at least 20% in aggregate.

The firm clarified that aside from the media reporting, there were no undisclosed matters that would warrant an unusual movement in its A shares' price.

The petrochemical firm's Hong Kong shares gained nearly 1% in late morning trade Friday.