...[A] joint letter, sent September 24th, 2007 and signed by institutional investors and NGOs, call[ed] on the top 20 investment firms with holdings in the publicly traded subsidiaries and spin offs of the Big 4 companies with operations in Sudan: China National Petroleum Corporation (CNPC), China Chemical and Petroleum Corporation (Sinopec Corp), Petroliam Nasional Berhad (Petronas), and Oil and Natural Gas Corporation of India-Videsh (OVL); to exercise their shareholder rights to engage these companies in an effort to increase pressure on the Government of Sudan [for change in Darfur]... Enclosure 3 [included with the letter] provided a summary of possible engagement points that the firm could use to encourage the companies in which they are stockholders to be more responsive to the human rights crisis in Darfur.