Core Viewpoint - JunDa Co., Ltd. (02865) has seen a stock price increase of over 7%, currently trading at HKD 16.73, with a transaction volume of HKD 39.28 million, following the announcement of advancements in its perovskite battery technology [1] Group 1: Company Developments - The company has confirmed that its perovskite battery is still in the research and development phase, but has successfully achieved the first industrialized TOPCon + perovskite tandem battery, measuring 210×105mm, at its Chuzhou base [1] - The perovskite team independently developed and completed the entire process, marking a significant step in the industrialization verification of tandem batteries, with capabilities for stable production and small batch shipments [1] Group 2: Production Capacity and Infrastructure - Guozheng International reports that JunDa's TOPCon production capacity is 44.4 GW, with two production bases located in Anhui Chuzhou and Jiangsu Huai'an, each with a capacity of 22.2 GW [1] - The Chuzhou production base is one of the first in the world to achieve large-scale production of TOPCon batteries, and both bases utilize efficient automated production [1] - The company has the capability to rapidly expand production capacity, with the construction of the Chuzhou and Huai'an bases completed within 4-5 months [1] - Existing production bases have room for technological upgrades to adapt to new technology routes, and if TBC batteries achieve large-scale production, current production lines can be modified to produce TBC batteries, enhancing investment returns [1]