1. NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Property, plant and equipment useful life

	Useful life (in years)
Buildings (including salt pans)	8 - 20
Plant and machinery (including protective shells, transmission channels and ducts)	3 - 8
Motor vehicles	5
Furniture, fixtures and equipment	3-8