Custom Field in Woocommerce Brands

Hi. I want to put information on when a brand
will stock again. Look at the attached image

So, after out of stock, I can put the date when it will have stock again.
For example: Out of stock "until April 2023"

If the product belongs to this brand, then put the customizable text. If it is not, leave it blank

I don't want another plugin. Only code custom.

Thanks