Complex sentence: Fine Bamboo, which is main raw material for paper that is manufactured here, is grown in large area for Paper Mill requirement But the SPM paper mills has been closed and there are efforts to revive it lately.
Split into simpler sentences: Fine Bamboo, which is the main raw material for paper which is manufactured here, is grown in a large area for the Paper Mill requirement. But, the SPM paper mills have been closed and there are efforts to revive it lately.