Daily Update — Decemeber 16 2025
Low-carbon Ammonia Growth; US AI Chip Exports; and Tariff Differentials
Today is Tuesday, December 16, 2025, and here’s your curated selection of Essential Intelligence on global markets from S&P Global. Subscribe to be notified of each new Daily Update.
Energy Transition & Sustainability
Low-carbon ammonia markets firm ahead of EU carbon border rules
The global low-carbon ammonia market strengthened significantly from October to November. Conventional ammonia supply constraints tightened the market and supported prices, while exporters began readying low-carbon cargoes to Europe ahead of the Carbon Border Adjustment Mechanism’s implementation.
Carbon capture-enabled blue ammonia prices rose 6%-8% month over month across major regions in November, with values in Northwest Europe — the highest-priced delivery region — up $44 per metric ton to average $739/t. These gains built on October's already elevated levels. US Gulf Coast prices narrowed their discount to European assessments, up $50/t at $686/t, while Far East Asia prices rose $41/t to $531/t. Platts blue ammonia price assessments are based on the conventional ammonia market price plus a premium reflecting the costs of carbon capture and storage.
Artificial Intelligence
Listen: AI Chips, Global Supply Chains and Tech Policy — Getting Ready for 2026
S&P Global Market Intelligence tech policy reporter Stefan Modrich joined “MediaTalk” podcast host Mike Reynolds to explore the complexities of US export controls on NVIDIA and other chipmakers. The conversation covered the latest developments in AI chip exports, including the US government allowing NVIDIA to ship its H200 graphics processing units to select customers in China while still blocking access to advanced Blackwell chips.
What does this mean for the future of American innovation and global competitiveness? How are these policies shaping the delicate balance between national security and free-market ambitions? The episode explored the ripple effects on global supply chains, particularly in countries such as Japan and South Korea, and raised critical questions about US energy infrastructure and AI regulation.
Global Trade
Tariff Differentials Matter: Modest Dip in US Imports in November
US seaborne imports fell 3.2% year over year in November, helped by improving shipments of auto parts as tariffs in that sector have become routine. There’s also been a slower seasonal downturn compared with October.
Differential tariff rates have made a big difference to the performance of deliveries by origin. Shipments from mainland China and Hong Kong fell by 17.2% year over year in October, but this deceleration may slow after the cut in International Emergency Economic Powers Act rates linked to fentanyl. Shipments from Southeast Asia surged 21.9% year over year in November, a result of tactical reshoring for products not bought from mainland China. India’s shipments fell 18.7% year over year in November, reflecting the elevated duty rate that the country continues to face due to its oil imports from Russia.
Imports from the EU, European Free Trade Association and UK improved by 10.8% year over year in November from 4.8% in October, thanks to lower tariff rates of 15% for the EU and 10% for the UK.
In case you missed it
- The accelerating global energy transition has enhanced the demand for copper, yet starting new mines has become increasingly costly.
- Australia's government opened five new areas for bidding in the Otway Basin for offshore gas exploration to lower power prices and ensure the domestic industry has access to affordable gas.
- Central and Eastern European governments' fiscal performance has remained weak since the COVID-19 pandemic due to subdued GDP growth, record-high defense spending and fragmented domestic politics.
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