LiPF6 electrolyte salt

Chinese battery electrolyte and LiPF6 materials company (SZSE: 002360, HQ Guangzhou; ~RMB 15B revenue); China's largest electrolyte supplier by volume and a significant LiPF6 producer. TINCI produces both the LiPF6 salt and the formulated electrolyte (LiPF6 dissolved in organic carbonates: ethylene carbonate, dimethyl carbonate, diethyl carbonate) for Li-ion battery manufacturers. TINCI supplies CATL, BYD, and multiple Chinese and Korean battery makers. As a vertically integrated electrolyte company (producing both the salt and the formulated solution), TINCI captures more value chain margin than pure LiPF6 producers. China's 2021 LiPF6 spot price spike to >$40,000/tonne was partly driven by the rapid growth of companies like TINCI outpacing raw LiPF6 production capacity.

Japanese electronic-grade specialty chemical company (TSE: 4109, HQ Osaka; ~¥50B revenue); producer of ultra-high purity hydrogen fluoride (electronic grade, 5N to 7N+ purity — 99.999% to 99.99999%) used in semiconductor wet etching processes (HF etches silicon dioxide — SiO2 — in a highly controlled manner to pattern silicon chips). Stella Chemifa's electronic-grade HF is the standard product for Japanese semiconductor manufacturers (Renesas, Toshiba Memory/Kioxia, Sony Semiconductor) and exports to Korean (Samsung, SK Hynix) and Taiwanese (TSMC) fabs. In 2019, when Japan restricted exports of semiconductor-grade fluorinated compounds to South Korea, Stella Chemifa was one of the three Japanese companies affected by the export controls (alongside Sumitomo Chemical and JSR). Samsung reportedly had enough Stella Chemifa HF inventory for approximately 1-2 months of production when Japan imposed the restrictions.

Japanese specialty fluorine chemicals company (TSE: 4286, HQ Sōja, Gunma; ~¥70B revenue); one of Japan's two dominant LiPF6 (lithium hexafluorophosphate) producers alongside Stella Chemifa, together producing approximately 25-30% of global LiPF6. Kanto Denka's LiPF6 synthesis route uses high-purity HF and phosphorus pentafluoride (PF5) in anhydrous conditions — a highly moisture-sensitive synthesis requiring specialized chemical manufacturing infrastructure. Kanto Denka also produces SF6 (sulfur hexafluoride, used as a dielectric insulating gas in high-voltage electrical switchgear), ClF3 (chlorine trifluoride, used in semiconductor chamber cleaning), and electronic-grade fluorine gases for semiconductor manufacturing — one Japanese specialty chemicals company supplying both the semiconductor fab and the EV battery supply chain from the same fluorine chemistry platform.

Chinese battery electrolyte company (SZSE: 300887, HQ Shenzhen; ~RMB 10B revenue); produces both battery electrolyte formulations and LiPF6 salt for Li-ion batteries. Capchem is the second-largest Chinese electrolyte producer after TINCI, supplying domestic and international battery customers. Capchem differentiates on electrolyte additive chemistry — the small-percentage additives (FEC, VC, etc.) that dramatically improve battery cycle life, low-temperature performance, and safety. Capchem's additive IP is a meaningful competitive differentiator in the increasingly commoditized electrolyte market. Capchem also has US production (California) to qualify for IRA incentives by producing electrolyte in North America.