Is trias on ETH?

Excuse me, could you please clarify something for me? I've been reading about various blockchain projects and I came across Trias. From what I understand, it's a blockchain platform with a focus on privacy and security. However, I'm a bit confused about its relationship with Ethereum (ETH). Is Trias built on top of the Ethereum blockchain? Or does it operate on its own independent blockchain? I'd appreciate any insight you could provide on this matter. Thank you in advance.