The company's $80m (£52m) flotation happened just days after an unsuccessful coup in the politically unstable country.
He had been detained since 1982, shortly after an unsuccessful coup by junior air force officers.
In March 1971, a group of senior military officials attempted an unsuccessful military coup.
The unfortunate repercussions, in Chile and internationally, of an unsuccessful coup were discussed.
He left the party after the unsuccessful coup in the Soviet Union last year.
There had been one unsuccessful coup by a former military leader.
The nephew had been banished after an unsuccessful coup and had ended up in Egypt.
He was a victim of the unsuccessful 1960 Ethiopian coup.
In June 1973 there was an unsuccessful military coup.
His administration has been marked by a surge in violence, corruption, drug trafficking and unsuccessful coups.