Phoenix is a Hong Kong-based holding company that operates through its subsidiary, Winfield Engineering, a specialist subcontractor focused on substructure works — the underground foundation systems that buildings and civil infrastructure sit on. Winfield's core services include site formation, ground investigation, and foundation works such as excavation, pile caps, earthworks, and lateral support systems. Winfield operates almost entirely as a subcontractor, hired by main contractors rather than directly by project developers or government agencies. The company focuses heavily on public sector projects, which account for roughly 80-83% of revenue, including Hong Kong government road, airport, and urban infrastructure programs. Winfield wins work through competitive tendering, submitting bids priced at estimated cost plus a markup, with projects running 2 to 26 months and customers paying monthly based on certified progress reports. Profitability hinges on accurate cost estimation, project mix, subcontractor and material costs, and machinery utilization. Winfield is a very small business with 21 employees and a single office in Kowloon Bay, and it faces meaningful concentration risks: the top five customers accounted for roughly 94% of FY25 revenue, with the single largest customer representing roughly 50%. Revenue is not supported by long-term contracts, making the business dependent on continually winning new tenders. Winfield raised roughly $5.76M in net proceeds from its April 2025 Nasdaq IPO, primarily to expand manpower and working capital to pursue larger projects.