qingzhou tianan chemical industry 120 000 tons/year pbat project restarted
on march 31, 2023, the weifang municipal bureau of ecology and environment announced the proposed approval of qingzhou tianan chemical co., ltd. tianan chemical’s 120,000 tons/year pbat fully biodegradable polyester project. the project was first publicized before the approval of the construction land planning permit in june 2021, and the weifang ecological environment bureau project…
