Annual report pursuant to Section 13 and 15(d)

Research and Development Costs

Research and Development Costs
12 Months Ended
Dec. 31, 2018
Notes to Financial Statements  
Note 7. Research and Development Costs

Lightbridge total corporate research and development costs, included in the caption research and development expenses in the accompanying consolidated statement of operations amounted to approximately $3.5 million and $2.3 million for the years ended December 31, 2018 and 2017, respectively. See note 11 – Related Party Transactions regarding consulting fees charged to Enfission for research and development expenses incurred by Lightbridge on behalf of Enfission.