China Railway Tunnel Group CRTG
https://www.prnewswire.com/news-releases/intelligent-systems-employed-in-constructing-chinas-deepest-undersea-tunnel-302127657.html
HS2 Inside the Chiltern tunnel
HS2 Media release
source:
https://mediacentre.hs2.org.uk/news/hs2-chiltern-tunnel-florence-and-cecilia-reach-4-mile-point-at-chalfont-st-giles
Centralny Port Komunikacyjny Łódź tunnel POLAND
Media information from CPK
https://www.cpk.pl/en/news/the-construction-of-the-cpk-long-distance-hsr-tunnel-in-lodz-has-begun-the-construction-contract-has-now-been-signed
HS2 Chilterns Tunnel North Portal view looking north
from HS2 media release: https://mediacentre.hs2.org.uk/news/hs2-reveals-final-design-for-last-of-seven-key-chiltern-tunnel-structures
HS2 Chiltern Tunnel TBM Cecilia Breakthrough
released by High Speed 2 Project at https://mediacentre.hs2.org.uk/resources/240321-hs2-chiltern-tunnel-tbm-cecilia-breakthrough-655