Taiwan’s Plastic Habit Collides With Shortages Caused by a Faraway War

Why It Matters

The crisis exposes Taiwan’s vulnerability to geopolitical shocks in the petrochemical market, potentially driving up regional plastic prices and prompting a strategic rethink of supply chains.

Key Takeaways

• Iran war halted Persian Gulf tankers delivering naphtha to Taiwan.
• Formosa Petrochemical's capacity fell 42% after line shutdown.
• Company seeks U.S. LPG and Chinese plastic imports as alternatives.
• Taiwan imports two‑thirds of naphtha, exposing supply chain risk.
• Disruption exceeds impacts of Russia‑Ukraine war and COVID‑19 pandemic.

Pulse Analysis

Taiwan’s plastics industry has long depended on cheap naphtha from the Middle East, a legacy of the island’s integrated petrochemical complex and its proximity to Gulf shipping lanes. When the Iran‑Israel conflict escalated in early 2026, maritime routes through the Persian Gulf became contested, and tankers carrying naphtha were either delayed or rerouted. The abrupt halt in deliveries caught manufacturers off guard, revealing a supply chain that lacked redundancy and underscored the geopolitical risk embedded in Taiwan’s feedstock strategy.

Formosa Petrochemical, which accounts for roughly a third of Taiwan’s plastic output, felt the shock most acutely. With one of its two production lines idled, the company’s effective capacity plunged by about 42%, a decline the firm says dwarfs the disruptions caused by Russia’s invasion of Ukraine and the COVID‑19 pandemic. To mitigate the shortfall, Formosa has begun purchasing liquefied petroleum gas (LPG) from U.S. exporters—a higher‑cost but more readily available feedstock—and has also sourced finished plastic components from Chinese suppliers with whom it maintains long‑standing relationships. Other Taiwanese producers are following suit, scrambling to secure alternative inputs and re‑evaluate inventory policies.

The ripple effects extend beyond individual firms. Downstream manufacturers that rely on Taiwanese plastic packaging face tighter supply and higher costs, which could translate into price hikes for consumer goods across East Asia. Policymakers are now weighing options to diversify feedstock sources, such as encouraging domestic naphtha production, expanding strategic reserves, or negotiating stable import agreements with non‑Middle‑Eastern partners. In the longer term, the episode may accelerate investment in circular‑economy solutions and advanced recycling technologies, as the industry seeks to reduce its exposure to volatile global petrochemical markets.