Edit: looks like they have (one?) partnership in place to help an OEM do that: https://news.lenovo.com/pressroom/press-releases/intel-colla...
4/3/26 Shipped to MSS facility Beijing
4/5/26 Received at MSS facility Beijing
4/5/26 Special firmware upgrade performed at MSS facility
4/7/26 Shipped from MSS facility Beijing to customer in United States via Fedex