https://govtribe.com/category/unspsc/73100000-plastic-and-chemical-industries yearly 0.8 https://govtribe.com/category/unspsc/73101500-petrochemical-and-plastic-production yearly 0.8 https://govtribe.com/category/unspsc/73101600-chemicals-and-fertilizers-production yearly 0.8 https://govtribe.com/category/unspsc/73101700-pharmaceutical-production yearly 0.8 https://govtribe.com/category/unspsc/73101800-biochemical-and-biotechnology-production yearly 0.8 https://govtribe.com/category/unspsc/73101900-rubber-production yearly 0.8 https://govtribe.com/category/unspsc/73101506-research-and-development-refining-services yearly 0.8 https://govtribe.com/category/unspsc/73101507-research-and-development-refining-fuels yearly 0.8