The change in ratings outlook reflects the company's lower volume growth, mainly due to lower coal volumes, and a rise in capital expenditure and financial leverage, when compared to our previous expectations.
"The sharp decline in coal cargo for APSEZ's ports due to reduction in coal imports by India, together with some state-owned utilities shifting their cargo to Government owned ports, is likely to have material impact on the growth trajectory of APSEZ," said Abhishek Tyagi Moody's Vice President and Senior Analyst.
The agency said this trend was visible in fiscal year ending March 31, when APSEZ's overall cargo growth grew by only 5 per cent year on year mainly due to 8 per cent year on year decline in coal handled by its ports.
The tepid volume growth in FY16 was accompanied by higher debt due to increase in capex and loans and advances, it said.
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The firm noted APSEZ's plan to focus more on container volumes to offset the decline in coal volumes but added such an initiative entails a degree of execution challenge that was not incorporated in the Baa3 rating and stable outlook.
APSEZ's credit metrics will likely remain under pressure in the fiscal year ending March 31, 2017 given its substantial capex plans and the payment due on its acquisition of Katupalli port.
The ratings could be downgraded if coal volumes continue to fall, and such a decline is not offset by an increase in container volumes, resulting in the company's financial metrics deteriorating beyond the parameters of its Baa3 ratings category, the statement said.
Moody's said APSEZ's ratings are predicated on a reduction in the company's existing exposure to related parties within the broader Adani group through business advances.