Puʻuhonua o Puʻuhuluhulu was established by kiaʻi with the support of the Royal Order of Kamehameha ʻEkahi for the purpose of protecting sacred Maunakea.
NOTICE TO CEASE AND DESIST
June 15, 2026
FR: Puʻuhonua o Puʻuhuluhulu
p.puuhuluhulu.info@gmail.com ▲ https://www.puuhuluhulu.org/
RE: Notice to Cease and Desist in Pursuing Construction of TMT on Mauna Kea
TO: TMT International Observatory (TIO) LLC
100 W Walnut St Ste 300, Pasadena, California, 91124, United States
(626) 395-1600, inquiry@tmt.org
CC: TIO Governance, Partners, Associates, & Observer; Associated Government Officials & Institutions; Mauna Kea Observatories; University of Hawaiʻi, UH Hilo-Center for Maunakea Stewardship; Mauna Kea Stewardship and Oversight Authority
This serves as a notice to TMT International Observatory (TIO) LLC to immediately cease and desist any and all efforts to construct the Thirty Meter Telescope (TMT) on Mauna Kea.
Thousands of Native Hawaiians have demonstrated their rejection of the proposed project and have never given their free, prior, informed consent to construct the TMT on Mauna Kea.
All available legal remedies will continue to be pursued to protect Mauna Kea from further overdevelopment and desecration. Furthermore, the TMT project would be subject to the enforcement of environmental review and protections under federal and state statutes, jurisdictional issues related to the Mauna Kea Access Road, complications involving expiring leases, and the governance uncertainties of Mauna Kea as a whole.
The enclosed petition containing more than 500,000 signatures opposing the TMT project on Mauna Kea reflects the sustained and widespread opposition to the proposed development and reinforces the message repeatedly conveyed to TIO for the last 15 years: TMT will not be built on Mauna Kea.
code of conduct
This is a Puʻuhonua, please act accordingly. We are in the presence of the mauna & strive to uphold the highest sense of cultural protocol. Mahalo for keeping the lāhui safe.
1. Kapu Aloha Always.
2. NO weapons, NO smoking of any kind and NO alcohol.
3. MĀLAMA each other.
4. Ask consent for any pictures or video.
5. Pick up ʻōpala you see.
6. BE PONO.
