Costs of manufactured articles importantly depend on the cost of raw materials as well as labour.

The prices of raw materials do not fluctuate directly with the labour cost of producing them.

I come from a farming culture, where we valued raw materials above all.

The right raw materials can... double or triple the protective power of the immune system.

Every article is carved by hand, so prices depend on both the raw materials and the workmanship.

If tomorrow the Chinese decide not to supply the world with raw materials, the pharma industry would collapse.