The Short Version
SIGMAS did publicly announce a $1 million seed round co-led by Mucker Capital and HongShan Capital (formerly Sequoia China) in March 2026, and the details are consistent across multiple outlets. However, all supporting coverage traces back to a single company-issued press release distributed via PR Newswire, with no investor-side confirmation yet visible from Mucker or HongShan's own channels. The claim accurately reflects the announced deal but should be understood as a self-reported announcement rather than independently verified transaction.