* 1,043 companies report on deforestation to CDP in 2022

* Less than 10% have a 'robust' plan to end it by 2025

* Collective $80 bln hit flagged by 269 companies

LONDON, July 6 (Reuters) - The number of companies reporting on their management of deforestation risk has risen 300% over the last five years, yet most have no plan in place to stop it, environmental disclosure platform CDP said on Thursday.

Over half of the world's economic output is moderately or highly dependent on nature and its services, the World Economic Forum has said, and in December a landmark deal to protect and preserve it was agreed in Montreal.

A total of 1,043 companies responded to an annual survey by CDP covering their operations in 2022. More than 60% disclosed some deforestation-related risk, such as the increased severity of extreme weather or shifts in consumer preferences away from products linked to forest destruction.

However, less than 10% had a "robust" public commitment to end deforestation by 2025, and just 10 companies had pledged to do so whilst also ensuring good social conditions and remediation for workers, CDP said in a statement.

Of those to report, 269 firms estimated the potential cost of leaving risks unaddressed at almost $80 billion combined, or an average of $300 million per company, CDP added. Estimates on the cost of responding to risks from 342 companies totalled $5.9 billion or an average of $17.4 million each.

Thomas Maddox, Global Director, Forests and Land Use at CDP, said the "record-breaking" year for disclosures was encouraging for transparency.

"The results show companies are becoming ever more aware of the risks and opportunities addressing deforestation represents, but we continue to see a gap between commitments and tangible actions."

The increase in reporting to CDP, used by investors globally, comes as regulators including in the European Union and Britain begin to formalise reporting obligations for boards in an effort to slow and reverse biodiversity loss.

"Companies acting now will reap the benefits of the opportunities. Companies acting later will face the highest costs," Maddox said. (Reporting by Simon Jessop; Editing by Emma Rumney)