Zambia's main opposition political party has demanded the release of a report on the findings of a commission of inquiry set up to investigate the sale of Zamtel to Lap Green Networks of Libya.

The United Party for National Development (UPND) wants the Zambian government to immediately release the report so that Zambians could know how Zamtel was sold to Lap Green Networks by the previous government.

UPND president Hakainde Hichilema said Zambia's president Edgar Lungu should immediately release the findings of the Sebastian Zulu Commission of Inquiry to investigate the sale.

The Commission of Inquiry was set up by the current government in 2011 after it took over office from the previous government that sold the company.

To date, the report on the findings of the Commission has not been released to the public although Zamtel itself was repossessed by the government in 2012 on the grounds that it was illegally sold by the previous administration.

Zamtel was sold to Lap Green Network for $257 million. The Libyan company owned 75% shares in the company while the Zambian government owned 25%.

"We demand that President Lungu releases the findings of the inquiry because public funds were used for the investigations," Hichilema said.

The previous government said it was forced to sale the state-owned total communication solution provider because it failed to recapitalise the company to make it more viable and compete with private operators.

The Minister of Communications and Transport at the time the company was sold is still to appear in court over her alleged role in the sale of the company.

She denies any wrong-doing, but the Zambian government claims that she personally benefited from the transaction.