​​In 1969, Şişecam began to produce soda ash, a primary raw material in the glass industry. Currently, the Company’s soda ash production capacity totals 5 million tons/year at its plants operating in Turkey, USA (Wyoming), Bosnia-Herzegovina, and Bulgaria. With this production volume, Şişecam is world's 2nd largest producer of soda ash. With the projects on the pipeline in the US (Pacific and Atlantic), Şişecam aims to exceed a soda ash production capacity of 10 million tonnes and become a world leader by 2026. Serving as a dependable supplier with high production capacity, top-notch product quality and an expansive marketing network, Şişecam meets Turkey's soda needs while also serving global markets as a major supplier.

Şişecam became a partner of Bulgarian soda ash producer, Sodi which was privatized in 1997, with Solvay (Belgium) and EBRD. After EBRD terminated its partnership, Şişecam boosted its stake to 25% in subsequent years. In 2006, Şişecam acquired Lukavac Soda Plant in Bosnia-Herzegovina and expanded the plant’s production capacity to 625,000 tons/year with significant capital investments.

In 2019, Şişecam entered into a production partnership with an equal shareholding structure to make a natural soda investment with a total production capacity of 2.7 million tons/year in the USA. In 2021, Şişecam and Ciner Group expanded the scope of their cooperation and changed the structure of their partnership. As part of the new investment plan, Şişecam became a 60 percent shareholder by acquiring an additional share in Pacific Project. In addition to that, Şişecam also purchased majority shares in the Atlantic Project and Ciner Resources natural soda ash production facilities of Ciner Group in Wyoming and undertook the management of these investments. With the new structure of the partnership, the 2 strong companies will realize a natural soda ash investment of approximately 4 Billion USD in total in the US. With this strategic move, Şişecam-controlled soda ash production capacity will exceed 10 Million metric tonnes, comparing to the existing capacity of 5 Million metric tonnes today. With the investments that will include the establishment of the largest soda ash production facility in a single location, Şişecam is expected to become the largest natural soda ash producer in the United States.

Şişecam’s heavy and light soda, sodium bicarbonate and sodium sulfate production operations primarily target the glass industry, in addition to detergent and chemicals producers, as well as the paper, textiles, food and animal feed sectors. Additionally, Şişecam produces limestone and salt, key raw materials in soda ash production, at its own plants.