The Sulphur Springs City Council gave preliminary approval at Tuesday night’s meeting to establishing a re-investment zone for a 300,000 square foot expansion and 180,00 square foot building to be built ASAP by D6 Manufacturing. Another 120,000 square foot building will be built within 3 years. The new buildings will be located just across from the current facility on property the EDC owns. A second reading of the proposal will be held in February.