In 2020, greenway applied for Kema Netherlands certification for the waterproof junction box, which was changed from TUV certification to new certification. The waterproof junction box applied for ukca certification in the UK, SAA certification in Australia and ETL certification in the United States. It expanded the market and channel of each country, increased sales capacity, and bought three more injection molding machines, At present, 11 injection molding machines can be produced. Semi automatic production has replaced manual production.