Feb 28 (Reuters) - Chemours has appointed Denise Dignam as interim CEO and Matt Abbott as interim Chief Financial Officer, it said on Wednesday, after it further delayed reporting its quarterly and full-year results.

The move comes after the chemicals maker placed its CEO Mark Newman, CFO Jonathan Lock and Camela Wisel, Vice President, Controller and Principal Accounting Officer, on administrative leave pending the completion of an internal review.

Chemours is "evaluating one or more potential material weaknesses in its internal control over financial reporting" as of Dec. 31, 2023, it said, "including the effectiveness of the 'tone at the top' set by certain members of senior management."

Chemours first postponed reporting its fourth-quarter and full-year earnings report from earlier this month to Feb. 28, pushing its shares down. The firm did not disclose a new date for reporting its results.

The company said it needs additional time to complete the reporting process and added it expects preliminary net sales of about $6.0 billion for the year ended Dec. 31, compared to net sales of $6.8 billion last year.

Chemours also expects to report a net loss for the year ended Dec. 31, within the $225 million-$235 million range, compared to net income attributable to Chemours for 2022 of $578 million.

Shares fell nearly 9% this year, as of its last close on Wednesday. (Reporting by Jahnavi Nidumolu in Bengaluru; Editing by Janane Venkatraman)