Triple magnesium complex maximum coverage 300 mg magnesium oxide magnesium citrate magnesium carbonate, non-gmo, gluten free and soy free formula, 250 tablets. 4.5 out of 5 stars 106. $14.99 $ 14. 99 ($0.06/count) save 5% more with subscribe & save. get it as soon as tomorrow, sep 25. Magnesium carbonate is a salt of the essential mineral, magnesium. dietary magnesium is required by every cell in the body and is a necessary component in hundreds of metabolic processes. magnesium supports muscle, immune and nerve function, and energy transport. Plastic industry buy magnesium carbonate from its suppliers, manufacturers or traders as it is a filler material and smoke suppressant in plastics. it a reinforcing agent in neoprene rubber, a drying agent and used for color retention in foods. There are 88 magnesium carbonate for paint suppliers, mainly located in asia. the top supplying countries or regions are china, india, and taiwan, china, which supply 82%, 4%, and 4% of magnesium carbonate for paint respectively. magnesium carbonate for paint products are most popular in united states, pakistan, and united kingdom.