Norwegian electrolyser maker HydrogenPro AS (<a href="https://www.nasdaq.com/european-market-activity" target="_blank">OSE:HYPRO</a>) has raised NOK 70 million (USD 6.2m/EUR 5.9m) in equity from existing investors and agreed a deal with a unit of Chinese solar manufacturer Longi Green Energy Technology Co Ltd (<a href="https://english.sse.com.cn/markets/equities/list/overview/?COMPANY_CODE=601012&STOCK_CODE=601012" target="_blank">SHA:601012</a>) that could double the overall amount.