Postal workers met at Labour’s conference on Monday to protest against plans for privatisation and competition with private firms.
A report in the Times on the same day predicted that Royal Mail’s 200,000 employees are to be given a 20 percent stake in the business, a privatisation scheme.
A government review of Royal Mail, headed by Sir George Bain, is expected to recommend employee ownership when it reports next month.
Allan Leighton, Royal Mail’s chairman, has also asked for at least 10 percent of the organisation to be offered to outside shareholders.
Bain is aiming to report to Alan Johnson, the trade secretary and former CWU union leader, on 21 October, only three months after he began his inquiry.