The affirmation is driven by a resilient business model with above-average profitability and a healthy backlog of more than two years.

The affirmation is driven by the resilient business model with above-average profitability and the rental income that diversifies and stabilises cash flows.

The affirmation is driven by the resilient business model with above-average profitability and the increased contract backlog that has strengthened credit metrics.

The review follows the issuer's amended bond terms and business developments, resulting in no rating action.

The rating is driven by the company's strong credit metrics and above-average profitability. Constraints include the issuer's weak diversification as well as the concentrated backlog.