That means any middle sized company could have this in-house if they wanted to.
Parts also vary in complexity; throwing a CAD guy without CNC knowledge in front of a 5 axis CNC and telling them to make a injection mold, doesn't feel too far off from giving a soldering iron to a software guy and asking them to design a circuit-board. It may work out if it's simple, but be prepared to invest a-lot of time letting them fail and build up a skill-set if you need something complex.
I have heard from an acquaintance that once you have a good mold, there is no reason to not just injection-mold nationally.
As a mid-sized company, you care about IP protection. That means the price for China will need to include bilingual lawyers. Otherwise you might end up in the super awkward position that your mold gets copyrighted by the manufacturer inside China. That would then allow your contract manufacturer to prohibit other injection shops inside China from working with you.