According to a recent news article, Encore Data Products has partnered with Jar Systems to sell USB-C charging options.
Source: https://money.buzzingasia.com/news/encore-data-products-partners-with-jar-systems-to-sell-usbc-charging-options/0430219/
This partnership allows consumers to purchase USB-C charging options directly from Encore Data Products and Jar Systems through their respective channels.
The availability of these products may vary depending on the region and country where they are being sold, as well as the specific retailers involved in the distribution chain.