Cost composition is also called cost structure, it means the proportion cost takes part of total cost such as manpower, raw materials, land, machinery and equipment, information, access roads, technology, energy, capital, business relations, management quality, etc..
Cost composition reflects production characteristics of the product. From the proportion of various cost, sometimes labor cost takes a large part, sometimes raw material, or may be power, depreciation cost for occupying equipment. Cost structure is also largely influenced by technological developments, production types and scale.
Blue tungsten oxide cost composition mainly includes raw material （tungsten ore）, auxiliary material, power, labor cost and tax revenue. Raw material takes the largest portion for about 60%. As a result, flowing of raw material price affects blue tungsten oxide price.