Rainmaker Worldwide Announces Agreement for $4.7 Million Sale of Preferred Shares Published on May 22, 2020 00:55 by Water Network Research, Official research team of The Water NetworkRainmaker Worldwide Announces Agreement for $4.7 Million Sale of Preferred Shares Attached link https://www.globenewswire.com/news-release/2020/05/21/2037233/0/en/Rainmaker-Worldwide-Announces-Agreement-for-4-7-Million-Sale-of-Preferred-Shares.html