The $4 million payment was up from the less than $1 million that some vessels were paying to cut in line at the Panama Canal as recently as early March.
With few signs that the Strait of Hormuz will be fully open to tankers anytime soon, islands in the Pacific face a deepening crisis with no end in sight.
TSMC also warned of potential long term impacts to profitability from the ongoing war in Iran, which has impacted the global supply of chemicals used in chipmaking.