The pickpocket is believed to have taken the Apple handset from Zou Bin when they shared a taxi, the Xinhua news agency said.
Zou had nearly 1,000 contact numbers in the device and with no backup copy -- like millions of other people around the world -- he was more concerned about losing the data than the phone itself, it added.
"I know you are the man who sat beside me. I can assure you that I will find you," he said in a text message to the thief.
The tone of the message was unmistakably threatening -- Zou works in the pub industry, which in China is widely held to have links with gangs.
Days later he received a parcel containing his SIM card and 11 pages of carefully handwritten contact numbers, Xinhua said, adding he was "fossilised" by the result -- a Chinese colloquialism for astonished.
"It would take a while to write from one to one thousand, let alone names and a whole string of digits. I suppose (the thief's) hand is swelling," Zou was quoted as saying.
Chinese Internet users gave the thief plaudits for his efforts, dubbing him "the conscience of the (theft) industry".
One user of Sina Weibo, a Chinese equivalent of Twitter, posted: "What a sympathetic and faithful thief, one who values professional ethics.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
