SAO PAULO, Sept 25 (Reuters) - Brazilian waste

management company Ambipar has secured a preliminary

injunction from a Rio de Janeiro state court temporarily

preventing the accelerated maturity of its debt, according to a

decision seen by Reuters on Thursday.

The ruling comes amid a dispute with Deutsche Bank

, which had demanded additional guarantees for loans

to the company.

According to the decision, Deutsche Bank's request for

additional guarantees for Ambipar's green bonds created an

"imminent and concrete" risk for the company.

Ambipar said in its petition to the court that some

financial institutions had already begun notifying the group of

accelerated debt obligations.

The company argued that it would face a "financial hole

of more than 10 billion reais ($1.88 billion)" without the

injunction.

The injunction would "enable the continuity of the

group's business activities and allow the protection of its

assets, while seeking a viable alternative with creditors for

the adequate resolution of its financial commitments," the firm

said in the document.

Deutsche Bank did not immediately respond to a request

for comment.

($1 = 5.3266 reais)