HARRISBURG — Pennsylvania's state treasurer announced plans Wednesday to divest state holdings in one company that operates in Sudan and said her office will weigh "strategic" factors — such as government-sanctioned terrorism — in making future investment decisions.

Treasurer Robin L. Wiessmann said she will divest the state's $1 million stake in China Petroleum and Chemical Corp. because its operations in Sudan, whose government is under growing international pressure to stop violence in its Darfur region, pose an unacceptable risk to Pennsylvania taxpayers. The treasurer's office says one risk is a potential Sudanese government takeover of company assets.

"Our action today is not only the right thing to do, it is the smart thing to do," she said at a news conference in the Capitol Rotunda, where she outlined revisions to her office's investment policy.

Wiessmann's office also is considering selling its nearly $14 million investment in two other companies with operations in Sudan — Weatherford International Ltd. and Schlumberger Ltd. Wiessmann said she is beginning discussions with those companies about divesting, and noted China Petroleum was "nonresponsive" to similar entreaties.

Initially, Wiessmann said the state held $1.2 million worth of China Petroleum stock and would make between $500,000 and $750,000 from selling it, but a spokesman said later those numbers were out of date. Had the stock been sold at Tuesday's price, the profit would have been around $250,000, said spokeswoman Carrie Fischer Lepore.

The spokesman for Beijing-based Sinopec USA in New York, parent company of China Petroleum, was said to be traveling Wednesday and not available to comment.

The combined investments targeted by Wiessmann represent only a small portion of the billions of dollars that the treasury has invested at any given time — much of it in short-term securities.

Last month, President Bush signed a law allowing states and local governments to cut investment ties with Sudan, but said his administration would guard against any divestment decisions by lower governments that interfere with foreign policy or other federal powers.

Wiessmann said she will urge the boards of the state's two major public pension funds to follow her lead and adopt similar changes in the rules that guide their investments.