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The raw materials needed to make glass, including sand, soda ash and limestone, emit CO2 while they are being heated.

One key detail is that, unlike standard glass, the production of this glass doesn't need soda ash or limestone.

Market confidence had taken a hit after natural soda ash producer WE Soda decided to cancel its London IPO amid heightened concerns over the health of the market.

Natural soda ash producer WE Soda withdrew plans this week to list in London.

The world's largest producer of natural soda ash has scrapped plans to sell shares on the London Stock Exchange just a week after announcing the move.