Thermal Lasers are acquired by dismantling Krillers caught through Fishing. Go to The Business in Fortuna, select the desired amount of Krillers available, and select the "Dismantle" option to extract the components.
Each Kriller yields one Thermal Laser.
Thermal Lasers may also be acquired by breaking containers around the map.
Blueprints Requiring Thermal Laser
Click to view the Blueprints requiring Thermal Laser