OnePlus has released its shipment stats for the first half of 2021 (1H2021). The OEM claims that they have increased by 428% in the US, a greater amount of growth compared to all other brands in that market. This success is based on sales of the Nord N100 and N200 as well as the flagship 9 series.
https://www.notebookcheck.net/OnePlus-announces-it-was-the-fastest-growing-smartphone-brand-in-the-US-during-the-first-half-of-2021.552887.0.html