Chouest Group completed the acquisition of the Alliance business from Helix Energy Solutions Group, integrating it into Champagne Energy Solutions (CES) to expand its offshore decommissioning and plug-and-abandonment (P&A) platform. The transaction strengthens Chouest Group's strategy to deliver end-to-end offshore solutions focused on late-life asset management and decommissioning. The combined platform will offer services including P&A, subsea intervention, marine logistics, and infrastructure removal across the offshore energy sector. Johnson Rice & Company served as the financial advisor to Chouest Group on the deal. The acquisition builds on the recent formation of CES and advances Chouest Group's integrated offshore energy service capabilities.