By virtue of paragraph(s) 4 of Part 1 of Schedule 12A of the Local Government Act 1972.
Information relating to any consultations or negotiations, or contemplated consultations or negotiations, in connection with any labour relations matter arising between the authority or a Minister of the Crown and employees of, or office holders under the authority.
Condition:
Information is not exempt information if it relates to proposed development for which the local planning authority may grant itself planning permission pursuant to regulation 3 of the Town and Country Planning General Regulations 1992
Information which-(a)falls within any of paragraphs 1 to 7 above; and (b)is not prevented from being exempt by virtue of paragraph 8 or 9 above, is exempt information if and so long, as in all the circumstances of the case, the public interest in maintaining the exemption outweighs the public interest in disclosing the information
The report would contain details relating to ongoing discussions with trade union representatives.