Based on the provided data, here is the assessment for the suitability of Bouygues to issue hybrid bonds:

**Reasoning:**

1.  **Equity Cushion & Capitalization:** The company has a strong equity base, with Equity Attributable to Owners of Parent of €12,212m (up from €11,144m) and Total Equity of €13,932m. Total Assets are €60,595m. The equity ratio (Equity/Assets) is solid at 23%.
2.  **Profitability & Cash Flow:** The company is consistently profitable, with Profit from Operating Activities Recurring of €1,962m and Profit from Continuing Operations of €1,131m, although profits are slightly down year-on-year. Cash flow from operations is strong (€2,978m), providing ample debt servicing capability.
3.  **Leverage & Debt Profile:** Net Debt has increased significantly from €941m to €7,440m, largely due to a major acquisition (as evidenced by cash flows used in obtaining control of subsidiaries of €6,269m). This has driven a substantial increase in Long-term Borrowings from €5,805m to €11,586m. While leverage has risen sharply, the interest coverage ratio (operating profit / interest expense) remains very healthy at over 8x (€1,872m / €231m).
4.  **Interest Coverage:** The Cost of Net Debt is €198m, and Interest Expense on Lease Liabilities is €62m. The recurring operating profit covers these costs many times over, indicating strong short-term and long-term debt servicing capacity.
5.  **Asset Base:** The company holds significant tangible assets (PP&E of €9,187m plus Right-of-use assets), Goodwill of €12,626m, and other intangibles, which supports its borrowing profile.
6.  **Market Position:** Bouygues is a large, diversified industrial group (construction, telecom, media), typically considered a high-quality credit in the European market.

Despite the notable increase in net debt due to M&A, the cash flow generation and overall capitalization provide a strong foundation for subordinated debt. Hybrid bonds are typically issued by companies with strong investment-grade characteristics to manage leverage ratios and optimize their capital structure, which fits Bouygues's profile perfectly.

<answer>Strongly Suitable</answer>