On March 25, 2025, Tongwei showcased its advancements at Solar & Storage Live Africa in Johannesburg, located at 26°15' south latitude.

Tongwei presented a technical seminar on TNC 2.0, revealing the core of its efficiency enhancements for the South African market. The TNC 2.0 series modules leverage the 908 technology (Tongwei's independently developed 0BB technology), EPT edge passivation technology, PolyTech technology, and screen printing technology. These four "hard-core" technologies expand the performance boundaries of the modules, supporting South Africa's energy transition with high efficiency and reliability.

According to tests conducted by TÜV, a globally recognized certification body, the Tongwei TNC-G12R module achieves a front side power output of 682.8 watts (approximately 60 watts higher than the current mainstream production power of similar module types) and a conversion efficiency of 25.28% under the standard size of 2,382*1,134mm. The Tongwei TNC-G12 module reaches a power output of 778.5 watts (approximately 60 watts higher than the current mainstream production power of similar module types) and a conversion efficiency of 25.06% under the standard size of 2,384*1,303mm, further setting new records for module efficiency and power in the two mainstream TOPCon module types.

During the exhibition, Tongwei signed a 550MW module framework cooperation agreement with Hexing Electrical. This marks the fourth collaboration between Tongwei and Hexing Electrical since 2022. In the future, both parties will utilize Tongwei's high-efficiency modules to inject more vitality into South Africa's energy accessibility and green development initiatives.