The fate of one of the country's last remaining major mining companies hinges on Ottawa's openness to foreign investment from China and will ultimately be decided by the Prime Minister's Office.

Chinese chemical conglomerate Sinochem Group requires assurances from the PMO that a potential white knight offer for Potash Corp. of Saskatchewan Inc. will be fairly considered by the Canadian government, according to sources close to the state-owned enterprise. Sinochem won't proceed with a bid for the world's largest fertilizer firm unless it receives a positive signal from Ottawa, they said.

Read the entire Globe and Mail article here.