1. all rapid-spike chemical projects guided by the orientation of “three-acid-two-alkali”(in which, the three-acid means sulphuric acid, phosphoric acid and hydrochloric acid, and the two-alkali means sodiumhydroxide and soda);
2. all projects consuming chlorine, H2, steam, sodiumhydroxide, sulphuric acid, phosphoric acid and hydrochloric acid;
3. all hi-tech projects covering chemicals, medicines, fertilizers, etc.

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