Summer Sprout Technology (Beijing Xiahe Technology Co., Ltd.), established in 2017, develops OLED materials and technologies. The company develops almost all OLED stack materials, including HIL, HTL, EBL, ETL, hosts and emitters.
In 2026, it was reported that Summer Sprout plans to IPO in Shanghai, and raise $88 million. The company turned profitable in 2025 after several years of rapid increase in revenue.