A water-soluble battery binder developed by Hong Kong-based GRST enables battery recycling with less pollution and greater recovery of critical metals, the company's chief strategy officer, Frank Harley, said in an interview at the BloombergNEF Summit New York on April 22, 2026. The firm "is making the first stage of recycling a lot simpler," Harley said. Hong Kong-based GRST is "working with seven equipment manufacturers in China and the end customers for them are EVs, typically European EVs and consumer electronics," he said.