Assuming your assumptions are correct, which we really have no idea since nothing has been disclosed regarding this by the company, then all the money flowing to VTCQ US would be pure profit (like a commission) and go directly to earnings. Revenues might be low but earnings would be fantastic (which ultimately is the bottom line) since VTCQ US would have no associated costs. The only problem might be for VTCQ US taking advantage of the manufacturer's cash discounts or potentially paying late charges. To criticize them for trying to improve the terms now that they have the leverage of additional product line is ludicrous.
When a company slaps their name on a product, that product is being built to that company's specifications and they are considered the manufacturer, even if they don't actually assemble or create anything. Period. No company builds 100% of their product from scratch unless they are in raw materials.