DL E&C Headquarters from press release https://www.dlenc.co.kr/eng/daelim/pr/NewsView.do?keyword=&searchword=&currentPage=1&cd_mnu=EU035&idx=25563

Gulberg Tunnel - Gulbergtunnelen. Norway. source: Statens vegvesen press release. https://kommunikasjon.ntb.no/pressemelding/18401958/sikker-og-effektiv-losning-i-gullbergtunnelen?publisherId=3D17847490%3Flang%3Dno

Kystverket source: https://kommunikasjon.ntb.no/pressemelding/18406026/disse-entreprenorene-vil-bygge-verdens-forste-skipstunnel?publisherId=2088704&lang=no

Manhattan Tunnel Project Route and Cross-Section source press release: https://www.gatewayprogram.org/wp-content/uploads/2025/02/GDC-February-3-2025-Board-Meeting-Press-Release-for-website.pdf

CIDCO Fresh Water Tunnel Project Terratec Tunnel Boring Machine cutterhead lowered to shaft. source: TERRATEC https://terratec.co/terratec-3-2m-diameter-open-tbm-ready-for-cidco-fresh-water-tunnel-project-in-maharashtra/

Epiroc Scooptram ST10 G https://www.media.epiroc.com/en/search-results?q=st10%20g&queryIsTag=false&sort=most_relevant

Epiroc Terrah TS100 PEC https://www.media.epiroc.com/en/search-results?q=Terrah%20Series&queryIsTag=false&sort=most_relevant

Epiroc Terras Series TS100 https://www.media.epiroc.com/en/search-results?q=Terrah%20Series&queryIsTag=false&sort=most_relevant  

Herrenknecht - Laying protective pipes for the energy transition with E-Power Pipe source: https://www.herrenknecht.com/en/newsroom/pressreleasedetail/schutzrohrverlegung-fuer-die-energiewende-mit-e-power-pipe/

Semmering Base Tunnel - Austria https://presse-oebb.at/news-oebb-semmering-basistunnel-fertig-gegraben-die-neue-suedstrecke-rueckt-immer-naeher?id=211854&menueid=27021&tab=1&imageid=836629&l=deutsch