Differentiating US and UK websites to avoid duplication Issues

[HPP100101]

Hi guys,

I'm running into duplication issues in Google as Shopify doesn't have a language option for UK English as opposed to US English so the URL for my US site:

https://highperformancepolymer.com/products/countersunk-peek-screws

Is the same as the UK site (apart from the domain obviously!):

https://highperformancepolymer.co.uk/products/countersunk-peek-screws

Where as in German it is:

https://highperformancepolymer.co.uk/de/products/countersunk-peek-screws

So is there any way to create, or force, Shopify to force US URLs to list with /en-us/ and UK ones to show /en-gb/

Thanks in advance.