This thread with a later model Cirrus shows a sticker which yours doesn't have View attachment 684320Alcoa Japan, so the tubing on that one came from Japan
https://www.retrobike.co.uk/threads/94-erm-92-well-93-rocky-mountain-cirrus-rebuild.390738/
This sticker appear on the 91' frames. Not on 90' Synlos or mine one...