Fitch Ratings expects that the situation in Iran will disrupt China's container port network, increasing labor and storage costs

Fitch Ratings stated that if disruptions to shipping and air traffic related to Iran continue, port and airport operators in the Asia-Pacific region will face varying degrees of negative credit impact. Although port congestion can drive storage and other ancillary revenues at container terminals, a decline in schedule reliability generally raises unit costs and reduces productivity, putting margin pressure on operators with higher fixed costs. The main tail risk lies in the long-term closure of the Strait of Hormuz, which would exacerbate the volume and cost shocks to energy, bulk cargo, and container supply chains.

Fitch believes that for China's container ports, the most significant impact is the disruption of shipping networks rather than direct exposure to the Middle East. Service adjustments can lead to flight cancellations, delayed arrivals, and vessel congestion during schedule realignments, which, even if total throughput remains unchanged, will exacerbate dock congestion and increase labor, equipment, and storage costs. Ports with a high proportion of transshipment business and tight dock capacity typically experience the greatest fluctuations in productivity and cargo dwell time.

Fitch expects that Zhejiang Port Group and Lianyungang Port Group have sufficient buffer space to absorb short-term fluctuations caused by congestion, schedule disruptions, and rising operating costs. Even if their standalone credit profiles weaken, their ratings should still benefit from the credit strength of the underlying municipal governments, reflecting a high likelihood of support