Should I list Corjl as a Production Partner in Etsy?

No, Corjl does not count as a production partner.  A production partner (or manufacturer) is anyone (who’s not a part of your Etsy shop) who helps you physically produce your items. Examples of production services include, but are not limited to, printing, 3D-printing, casting, plating, engraving, cutting and sewing, and finishing.