China’s major state-backed Shenzhen Stock Exchange (SZSE) started investigating a company that recently announced plans to open a Blockchain research lab for applications in the medical industry, reports local media Jinse today, March 21.

On Tuesday, March 20, SZSE issued a letter ordering healthcare device manufacturer Lifesense to disclose information on its plans to launch a “Blockchain laboratory.” The move followed Lifesense’s announcement of the project on March 19, which made the company’s share price spike by 10 percent, catching the attention of the stock exchange when the price hit the SZSE’s daily limit.

SZSE temporarily suspended Lifesence’s stock trading and required the company to provide details explaining the relevance of Blockchain technology to the company’s activity, the project’s annual plans for the next three years, and the amount of Lifesense’s funding shares. SZSE ordered Lifesense to answer by March 23, according to the letter.

Earlier this week, SZSE sent a similar inquiry to Zhejiang Enjoyor Electronics, China Money Network reported March 20. As a result, Enjoyor Electronics had to remove its announcement on WeChat that claimed to launch the world’s first Blockchain-based electrical data forensic certificate.

In January, SZSE issued a warning that it will closely observe companies using the popularity of Blockchain to boost their stock prices. According to China Money Network, SZSE has investigated more than 20 listed companies over specious claims about Blockchain technology.

Previously, Cointelegraph reported on companies using the word ‘Blockchain’ in the US to boost share prices via the hype surrounding the new technology. In January, the US Securities and Exchange Commission (SEC) announced increased scrutiny of US companies who change their name to include the word “Blockchain” to make it is down so legitimately. In February, the SEC suspended trading in three companies that issued statements about acquiring “Blockchain technology-related assets.”