Lan Chung-wen guesses that Sun Materials has probably adapted its process from a 1982 patent of the Stanford Research Institute. He adds that Taiwan has already had companies produce samples using the SRI patent, and quality was acceptable, but they got hung up on the problem of handling liquid sodium, and environmental impact assessments remain a problem.
工研院太電中心主任藍崇文表示，山陽技術應該是由史丹福研究中心 (SRI) 1982 年專利技轉而來的，台灣已有廠商做過樣品，品質還可以，但是卡在液態鈉的處理，環評仍有問題。