Lightbridge Corporation Quarterly report pursuant to Section 13 or 15(d)

Research and Development Costs (Tables)

6 Months Ended

Jun. 30, 2024

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
INL Project	$	0.3	$	0.1	$	0.7	$	0.3
Romania Feasibility Study		—		—		0.1		—
Centrus Energy FEED Study		—		—		0.2		—
Allocated employee compensation and stock-based compensation expenses		0.5		0.2		0.7		0.3
Other outside R&D expenses		0.1		0.1		0.2		0.2
Total	$	0.9	$	0.4	$	1.9	$	0.8