(ShareCast News) - Fertilizer firm Sirius Minerals said it had permissions for four out of five of the planning applications it submitted for its York potash project.The AIM listed company said the decision on the final application for the York mine, which has the highest and largest grade deposit of polyhaite in the world, was due at the end of September.Sirius managing director and chief executive Chris Fraser said in a statement the decision notices represented "the majority of the pieces of the planning jigsaw coming together."Shares in Sirius were up by 4.04% to 16.91p at 1555 BST.