Shares of SenseTime fell as much as 9.7% on Tuesday after U.S. short seller Grizzly Research alleged the Chinese artificial intelligence firm inflated its revenue.

SenseTime shares pared some of those losses in Hong Kong and closed 4.86% lower in the afternoon.

Grizzly Research alleged in a report on Tuesday that SenseTime engaged in a so-called “revenue round-tripping” program.

“SenseTime either directly or through intermediaries provides funds to customers that in turn are used to purchase goods from SenseTime that might never have been delivered,” Grizzly Research alleged. The short seller said it got this information via two court cases in China that described the scheme.

SenseTime said in a Hong Kong Stock Exchange filing that it is “reviewing the allegations and considering the appropriate course of action to take to safeguard the interests of all shareholders.”

The Chinese firm said it believes Grizzly Research’s report is “without merit and contains unfounded allegations and misleading conclusions and interpretations.”

SenseTime added that the report “shows a lack of understanding of the Company’s business model and financial reporting structure, and a lack of thorough reading of the Company’s public filings.”

Grizzly Research did not contact SenseTime to verify the information, SenseTime said in its statement.

SenseTime was once viewed as one of China’s most exciting artificial intelligence companies and is best-known for computer vision technology that can power facial recognition software.

However, the company has been a target of U.S. government sanctions. In 2019, Washington put SenseTime on the so-called Entity List, which restricts American firms from doing business with it. The U.S. alleged that SenseTime is linked to human rights violations in China’s Xinjiang region.

At the time, SenseTime said that it does “not have any business in, nor are we aware of our technology being used in the Xinjiang region.”

SenseTime proposed an initial public offering in Hong Kong in mid-2021 but postponed the listing later that year after the U.S. government added it to a list of “Chinese military-industrial complex companies.”

The company ended up doing its listing at the end of December, pricing shares at 3.85 Hong Kong dollars ($0.49). Shares closed at 1.37 Hong Kong dollars on Tuesday, 64% below their IPO price.

Due to SenseTime’s U.S. government blacklisting, the company “has a severely limited target market and therefore no outlook for any real improvement,” Grizzly Research said in its report.

The short seller also took aim at SenseTime’s technology, claiming it has “no competitive moat in AI.”

“We believe SenseTime is operating a fundamentally dead-ended facial recognition software business, plus some additional AI R&D projects with almost no chance of scalable future profits,” Grizzly Research said.

SoftBank reported a surprise loss in the first quarter covering April-June, despite an investment gain from its massive tech-focused Vision Fund.

Last quarter, SoftBank recorded a $32 billion loss at its Vision Fund investment arm, which has backed some of the largest names in technology today from Uber to South Korean e-commerce titan Coupang.

The company at the time said that, despite having exited its remaining stake in Uber, it still logged losses from investments such as SenseTime, a Chinese artificial intelligence company, and GoTo, an Indonesian ride-hailing and e-commerce firm.

The tech conglomerate, which engages in venture capital investing through its Vision Fund, has had its fair share of ups and downs. It halted new investments and offloaded its holdings of ride-hailing giant Uber, and trimmed its stake in Alibaba.

Investors will be looking for clues on how SoftBank has benefited from the rise in technology stocks these past few months. Major technology names such as Alphabet and Amazon have seen their share prices climb since the start of the year, as investors bet on an end to a relentless rise in interest rates.

Also in focus will be whether SoftBank has benefited from swelling demand for artificial intelligence following the rise of ChatGPT, a popular AI chatbot owned by Silicon Valley startup OpenAI. SoftBank has shied away from making new investments amid a grim market environment. But the company has made no secret of its desire to capitalize on the “AI revolution.”

In a shareholder meeting in June, CEO Masayoshi Son said that SoftBank plans to shift from “defense mode” to “offense mode.”

“In the past few years, we focused on being [on] ‘defense.’ Three years ago, we didn’t have a lot of cash on hand. But because we have been in defense mode, we have built our cash on hand to five trillion yen ($35.3 billion),” Son said. “We are ready to shift to offense mode. I am excited about that.”

Meanwhile, market players are keenly watching for any commentary from SoftBank on the initial public offering of Arm, the chip design company it acquired in 2016 for $32 billion.

SoftBank was originally meant to sell Arm, whose chip architectures can be found in 99% of all smartphones, to Nvidia for $39 billion, but it called off the deal after facing intense backlash from regulators, who flagged concerns over competition and national security.

During last quarter’s earnings call, the firm’s Chief Financial Officer Yoshimitsu Goto said that SoftBank has a number of companies ready to go public, which are valued at a combined $37 billion. He did not name these companies.

The brainchild of founder Masayoshi Son, SoftBank’s Vision Fund comprises Vision Fund 1 and Vision Fund 2 and invests in high growth stocks. Both portfolios have faced headwinds from rising interest rates globally causing investors to sell out of riskier equities such as tech.

Last year, faced with mounting losses, Son’s key ally and top SoftBank executive Rajeev Misra stepped back from some of his roles at the company. Misra was instrumental in the early days of the Vision Fund, which was launched in 2017.

SoftBank has a chequered track record with its investments into technology over the years.

The company notoriously backed U.S. office rental startup WeWork, which at one point was worth as much as $47 billion before SoftBank leapt to rescue the firm in a deal that sharply devalued it. It also took a stake in crypto exchange FTX, which last year collapsed owing investors billions after facing U.S. charges of fraud.

— CNBC’s Arjun Kharpal and Sheila Chang contributed to this report.

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