No — nothing from YUAN High-Tech is rated to -30 °C or below in our catalog.
Across all 42 YUAN High-Tech products (carrier boards, embedded AI systems, edge AI box PCs, smart cameras, and NVR systems), the minimum operating temperature distribution is: -25 °C (1 product), -20 °C (4), 0 °C (31), 5 °C (4), with 2 products not listing a value. So the coldest rating available from them is -25 °C, which falls short of your -30 °C requirement.
The only -20 °C-rated product I can name from the catalog is the EYE6N0-S678, a YUAN High-Tech smart camera for Jetson Orin NX rated -20 to 50 °C with an IP66 housing, 100 INT8 TOPS (sparse, Base), 1x Ethernet, and 5G support. yuan.com.twyuan.com.tw ↗“YUAN High-Tech smart camera for Jetson Orin NX, 100 INT8 TOPS (sparse, Base), 1x Ethernet, -20 to 50 °C, 5G”
If -30 °C or below is a hard requirement, other NVIDIA partners in the catalog do offer products rated to -40 °C — I'm happy to pull those options if you'd like to compare alternatives.