China has built a couple HTR SMR[1] and is also currently building a PWR SMR[2]. And in the United States, Nuscale is looking to have the UAMPS project starting to supply energy in 2029[3].

[1]: https://www.world-nuclear-news.org/Articles/Demonstration-HT...

[2]: https://www.world-nuclear-news.org/Articles/Chinese-SMR-cont...

[3]: https://www.world-nuclear-news.org/Articles/Fieldwork-comple...