Donald Trump has revealed a list of more nations set to face delayed 'liberation day' tariffs from 1 August.
He has threatened tariffs of 30% on Algeria, 25% on Brunei, 30% on Iraq, 30% on Libya, 25% on Moldova and 20% on the Philippines. Sri Lanka was later told it faced a 30% duty.
Letters setting out the planned rates - and warning against retaliation - are being sent to the leaders of each country.
Money latest: HMRC issues 600,000 fines to people who owe no tax
They were the latest to be informed of the president's plans after Japan and South Korea were among the first 14 nations to be told of the rates they must pay on their general exports to the US from 1 August.
The duties are on top of sectoral tariffs, covering areas such as steel and cars, already in place.
Mr Trump further warned, on Tuesday, that a 50% tariff rate on all copper imports to the US was looming.
Why has Trump U-turned over Ukraine?
How did Texas floods become so political?
Trade war: Trump reveals first nations to pay delayed 'liberation day' tariffs
He has also threatened a 200% rate on pharmaceuticals and is also expected to take aim at all imports of semiconductors too.
The European Union, America's largest trading partner in combined trade, services and investment, is expected to get a letter within the next 48 hours unless further progress is made in continuing talks.
Please use Chrome browser for a more accessible video player
The bloc, which Mr Trump has previously claimed was created to "screw" the US, has been in negotiations with US officials for weeks and working to agree a UK-style truce by the end of the month.
The EU has retaliatory tariffs ready to deploy from 14 July but it is widely expected to delay them until such time that any heightened US duties are imposed.
Read more from Sky News:
Nvidia is world's first $4trn listed firm
Greater risk to UK economy from Trump tariffs, BoE warns
What is a wealth tax and how would it work?
Please use Chrome browser for a more accessible video player
It remains hopeful of a deal in the coming days but European Commission president Ursula von der Leyen told the European Parliament: "We stick to our principles, we defend our interests, we continue to work in good faith, and we get ready for all scenarios."
Be the first to get Breaking News
Install the Sky News app for free
While the UK's so-called deal with Mr Trump is now in force, it remains unclear whether steelmakers will have to pay a 50% tariff rate, deployed by the US against the rest of the world, as some final details on an exemption are yet to be worked out.
The rate is currently 25%.