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Shuangdeng Group (HK 02323) is a leading telecom & new energy storage company. With Tsinghua University, developed China first mass-production low-temperature Na-ion solution for telecom & alpine scenarios: -40℃ stable discharge, -30℃ charging without heating, wide temperature range, scaled commercial use. Ranked Tier-2 in 2026 H1 ICC sodium battery ranking.
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