Calgary-based mining company suing Costa Rica for more than $1 billion

On its website, the company says it “…completed all the environmental, social and technical studies and obtained all approvals required under Costa Rican law to develop and operate the Las Crucitas Project.”
But the project was held up in court, and after irregularities were found in the approval process the mine’s approval was declared illegal.
In 2011, Costa Rica banned all open-pit metal mining.
http://globalnews.ca/news/883756/calgary-based-mining-company-suing-costa-rica-for-more-than-1-billion/