HONG KONG — Blockchain is back in Beijing’s good graces.

Chinese officials have quietly removed the business of making Bitcoin and other cryptocurrencies from a list of hundreds of industries that Beijing plans to outlaw. In April, the practice appeared on a list of industries that would be denied benefits and subsidies from local governments, leading to worries in China that a popular and lucrative business would dry up.

But making digital currency — a practice known as mining — was not on a final list released on Wednesday. It was not clear why the National Development and Reform Commission, China’s top economic planning agency, had removed cryptocurrency mining from the list, and officials there could not be reached for comment on Wednesday.

There appears to have been a significant shift in how China regards the unproven world of digital currencies. Even President Xi Jinping appears to have warmed to the technology, though Beijing may accept cryptocurrencies only in ways that it can tightly control.

Last month, Mr. Xi endorsed studies in blockchain, the underlying technology that allows a cryptocurrency like Bitcoin be tracked across a wide network of computers. Electronic payments are typically tracked by a centralized system like those run by PayPal or similar companies, giving those firms great control over the digital flow of money around the world.