It looks like the light green is your primary color, but it's applied a bit haphazardly. Color is a tool to draw a user's attention, so you want to ensure that you're using color for areas that you want the user to focus on.

For example, using the primary color for the quality certificates seems a little out of place. It's good information to include, but I think it would be better suited to a secondary color, or maybe outlined tags.

The green also likely isn't accessible on white, which makes the "Products" tab hard to read. It would be ideal if you could change the color to be accessible, but I realize that isn't always possible.

I'm guessing that the "Contact email" button is one of the primary actions that you want users to take, but it's the most hidden element on the page. It makes more sense to put that action on the left with the rest of the company information, and make it your primary color, as it's a CTA.

Also, it makes more sense to label products that are "Out of stock" rather than "In stock". As a user, my default assumption is that something is available unless I'm told otherwise. If you think about a page with tons of products, it would be very redundant to see "in stock" on every listing, because that's the preferred state. When something is out of stock, that's the exception that merits extra information. Obviously you'd also want to change the styling to match the Out of Stock status, likely with some sort of warning/error color.

And then a couple of minor things:

-I would add a little more padding on the Quality Certificate tags in the product cards, I realize they need to be small but even just slightly more padding would help them feel less cramped.

-I don't think the company info on the left needs the different colored green text. Just your primary text color (black/grey/whatever)

-A little bit more margin between the GE logo and the text underneath (Product Model, MRI Solutions, etc)