Nauru's government has partnered with a deep sea mining company which is exploring the country's waters for valuable resources on the seafloor.
Technicians from the Canadian company DeepGreen Resources have been carrying out a two-month survey at sea and plan to conduct four more campaigns.
The company harvests metal rich nodules which it claims offer a sustainable energy alternative.
Nauru President Baron Waqa said the partnership with DeepGreen will provide new revenue for the country.
"This venture with DeepGreen will ensure that our revenue will be well diversified for our children and their children well into the future," he said in a statement.