NEW YORK ( TheStreet) -- There's nothing like widespread allegations of fraud and accounting irregularities to diminish investor interest in a particular sector, and that's what's happened with Chinese companies with public listings in the United States.

In fact, the buzz has gotten so faint about China that one of the investment firms known for its coverage of companies from the region, Rodman & Renshaw, is reportedly shutting down its China research operations.

Dow Jones News Service, citing an undisclosed person familiar with the matter, said Rodham & Renshaw plans to announce the closure on Monday because the business has become "hard to monetize."

The firm is a unit of Rodham & Renshaw Capital Group ( RODM), whose shares closed Friday at 94 cents, up 7 cents. A company spokesperson wasn't immediately available to comment for this story.

The Justice Department and the Securities and Exchange Commission are both investigating alleged accounting irregularities at Chinese companies, and a number of fraud allegations have sunk Chinese companies that secured public listings in the U.S. through reverse takeovers, as documented in TheStreet's The Shanghai Numbers investigative report.

Rodham & Renshaw's Web site still features its research on China-based companies. Among the stocks the firm covers are Advanced Battery Technologies ( ABAT), Origin Agritech ( SEED), Sina Corp. ( SINA), and Zhongpin ( HOGS). The firm lists four analysts as covering China-based stocks.

-- Written by Michael Baron in New York.

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Disclosure: TheStreet's editorial policy prohibits staff editors, reporters and analysts from holding positions in any individual stocks.

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