Materials Supply Importance in Petrochemical Industry

I need a research about Materials supply importnace in Petrocemical Industry.

The research should cover below points:

1- Materials Supply Importance in Petrochemical Industry

2- Main problems on Materials Supply in Petrochemical Industry

3- Proposing solutions for above mentioned problems

4- what are the future research for Materials Supply in Petrochemical Industry.

In addition, I need the reference for each above points, and I prefer to be web site reference. 

The research should not exceed 6 pages