A glance at some of the day's highlights from the Proactive Investors newswire Powerhouse Energy Group PLC (LON:PHE) said a second site using its waste-plastic-to-hydrogen technology is to be developed by its partner, Peel L&P, at the Rothesay Dock on the north bank of the River Clyde in Scotland. CentralNic Group PLC (LON:CNIC) reported higher earnings for the first quarter of 2021 as it said “significant investment” in its management, staff and systems had accelerated organic growth to record levels. Chamberlin PLC (LON:CMH) said Kevin Price and Alan Tomlinson have taken up their positions respectively as chief executive and finance director of the specialist castings and engineering group.