US Tariffs Threaten UK Steel Exports: Economic Prosperity Deal Hangs in Balance as Trade Tensions Escalate

Listeners, welcome to the United Kingdom Tariff News and Tracker, your source for the latest on tariffs, trade news, and key developments affecting the UK and its American trading partner. In the most pressing headline, the United States under former President Donald Trump has continued to upend global trade with new, sweeping tariff measures. According to Trade Compliance Resource Hub, since June 4, 2025, the US has imposed a 50% tariff on most foreign steel and aluminum, doubling the previous rate. However, for the United Kingdom, steel and aluminum exports to the US have stayed at a 25% tariff until July 9, after which the Commerce Secretary can impose a 50% tariff or quotas if the UK is deemed out of compliance with the Economic Prosperity Deal, a non-binding agreement struck in May between the UK and the US. GEODIS, a leading freight and customs authority, confirms that these tough tariffs target not just raw materials but also goods containing steel and aluminum, and crucially, eliminate key exemptions that allowed for some relief on products facing multiple tariff measures. That means British exporters now face more uncertainty than ever, with goods departing UK factories priced into a volatile US market. According to the Global Trade and Sanctions Law Blog, the Economic Prosperity Deal signed in May offered reciprocal tariff reductions to both sides in areas like automotive, steel, aluminum, and beef, but much of its impact remains pending contingent on US security reviews and further bilateral negotiation. While the UK has thus far avoided direct retaliatory tariffs, London has expanded trade defense measures—in particular, safeguards and anti-dumping actions—focused on sectors threatened by the US measures such as steel. On the economic front, The Economic Times reported yesterday that July saw the US take in a record $27.7 billion in tariff revenue. President Trump touts this as proof of his tariff strategy’s success, but economists warn that US businesses and consumers are absorbing most of the cost. The Yale Budget Lab projects that once all Trump-era tariffs are applied, America’s average effective tariff rate will hit 18.6%, a level not seen since the Great Depression. The cascading policy shifts have fueled market worries and left businesses on both sides of the Atlantic wary of long-term investments. Wikipedia’s summary of the Liberation Day tariffs highlights just how dramatic the Trump administration’s approach has been, with baseline tariffs of 10% on nearly all countries since April, higher country-specific rates following soon after, and constant legal wrangling. In fact, the United States Court of International Trade ruled in May that Trump’s tariffs overstepped authority, but a federal appeals court put the ruling on pause, so the new rates remain in force while the case is argued—meaning the legal and commercial environment is far from certain for UK exporters. In summary, while the UK and the US have demonstrated a This content was created in partnership and with the help of Artificial Intelligence AI.