About: http://webisa.webdatacommons.org/135618696

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The cost of sales are primarily composed of the costs of direct raw materials (mainly heavy oil, benzene and carbinol), labor cost, depreciation and amortization of manufacturing equipment and facilities, and other overhead.
http://www.w3.org/ns/prov#wasQuotedFrom	prnewswire.com