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The group of Technical Promotion and Support Office, Region 5, Ministry of Social Development and Human Security (21 persons), to visit salt plant operation,  which produce purified brine using solution mining from dissolving  underground and environmental management

The group of Technical Promotion and Support Office, Region 5, Ministry of Social Development and Human Security (21 persons), to visit salt plant operation, which produce purified brine using solution mining from dissolving underground and environmental management