AT聽BANK of Taizhou Co., trainees are pushed to count money with lightning speed, toughened up by ex-instructors from the People鈥檚 Liberation Army and mobilized to go after delinquent borrowers with the subtlety of an infantry battalion.

The boot camp ethos would seem laughably bizarre if it weren鈥檛 for this: Bank of Taizhou is being called China鈥檚 most profitable lender and has delivered industry-beating loan margins since at least 2013.

The little-known bank is achieving these results by employing a lending model from Germany to scrutinize its borrowers, the thousands of entrepreneurial industries聽ranging from small equipment makers to plastic molding companies in the southeastern coastal province of Zhejiang.

By forging a model for the rest of China,聽Bank of Taizhou鈥檚 success shows that it鈥檚 possible to lend to small businesses 鈥 a sector long neglected by banks that accounts for more than half of gross domestic product 鈥 and make good money doing it.

There鈥檚 not a lender in China that beats Bank of Taizhou for profitability and asset quality, UBS Group AG concluded after picking over the financial statements of 237 banks across the country.

鈥淭his bank just stuck out鈥 on almost every metric, said聽Jason Bedford, the Hong Kong-based UBS analyst who led the study and plowed through the filings.

The risk-profiling聽system聽was brought in by a microfinance expert from Germany, Joern Helms, who was hired as the bank鈥檚 first foreign recruit. Known as IPC lending after the German consulting firm that originated it and where Helms had worked previously, it鈥檚 being聽held up聽by the World Bank as a guide聽for small-business financing.

鈥淚 disagreed with the view that small businesses are difficult to assess and small businesses are risky,鈥 said Helms, 44, who stepped down as a聽Bank of Taizhou vice-president in 2014 after almost a decade with the bank and now serves as a Shanghai-based adviser to the company. 鈥淲hat we added was a systematic approach to measure repayment capacity.鈥

Big banks are reluctant to lend to small businesses, instead concentrating more of their lending on state-owned enterprises.聽Industrial & Commercial Bank of China Ltd. extended 16%of its loans to small and micro businesses last year, a proportion unchanged from 2015.

Small-business lending is one part of China鈥檚 finance industry not expected to draw foreign interest,聽even as the government announced last week a plan to remove limits on ownership. Global banks in China are instead targeting large companies with cross-border businesses and wealthy individuals.

The government has been聽trying to free up聽more cash for banks to lend to businesses that typically find it difficult to get credit, and keep the transactions in the officially regulated system. Some of China鈥檚 smaller, regional banks are more engaged in shadow financing than traditional lending, according to聽an August report by UBS. Unregulated loans have bloated the shadow banking industry to an聽estimated聽122.8 trillion yuan,聽according to Nomura Holdings, Inc.

Zhejiang, especially the city of Wenzhou, where Bank of Taizhou also has a branch, became notorious in 2011-2012 for its聽shadow banking crisis, when dozens of business owners went bankrupt or committed suicide after not being able to repay loans to underground lenders, causing the government to intervene聽to increase funding for small businesses. While borrowing from shadow lenders remains an option, 鈥渢he good businesses don鈥檛 have to go there,鈥 Helms said.

Bank of Taizhou,聽which makes average loans of about $50,000 and whose shareholders include聽Geely Automobile Holdings Ltd., is聽showing up聽China鈥檚 banking behemoths. Return on equity was 29% last year, more than double the typical 13% among peers. ICBC, the world鈥檚 largest lender, managed 15%.

鈥淚t works because they鈥檙e a local bank, they know what鈥檚 going on, and they have a lot of information about their customers,鈥 said聽Oliver Rui, a professor at the China Europe International Business School in Shanghai.

To be sure, the labor-intensive nature of IPC lending swelled Bank of Taizhou鈥檚 cost-to-income ratio to 36%, compared with an industry average of 28%. Of the bank鈥檚 10,000-strong work force, some 4,000 are account managers.

鈥淥ur strength is that we really understand the small firms, and we can provide better services to them,鈥澛爏aid Bank of Taizhou President聽Huang Junmin, 51, noting that once customers get too big, the bank asks them to turn to larger lenders.

The bank鈥檚 model, tailored to聽the local culture, may be tough to replicate in provinces with a less entrepreneurial culture, said聽James Stent,聽author of 鈥淐hina鈥檚 Banking Transformation: The Untold Story鈥 and a former聽director聽at China Minsheng Banking Corp. and China Everbright Bank Co.

Account managers may have as many as 300 borrowers at a time and keep up a brisk pace on visits around Taizhou, whose streets bustle with trucks hauling components to assembly lines across town. Bank branches open as early as 7:30 a.m. and in the summer close at 7:30 p.m., unlike the typical 9-to-5 of rivals, so that businesses can access funds before and after the workday.

Managers not only handle banking needs, but can help them deal with parking tickets or even serve as a matchmaker, a tactic that 鈥渋ncreases customer stickiness,鈥 Huang said. 鈥淲e have a unique business model. We make friends with our customers.鈥

One of them, the founder of sewing machine maker Feiyue Intelligence Technology, last year borrowed 500,000 yuan from Bank of Taizhou at an annual interest rate of 9.6% 鈥 more than double China鈥檚 benchmark rate of 4.35% 鈥 to start his business. Ruan Bochun, 40, said the bank鈥檚 representative has become a friend. On a recent visit they could be seen joking together like old pals.

鈥淚 can communicate with him easily, otherwise I wouldn鈥檛 borrow money from him,鈥 Ruan said as he puffed a cigarette and drank tea beside hundreds of聽cardboard boxes and polystyrene shells.

There鈥檚 little tolerance at the bank for missed repayments. If there鈥檚 even a hint of them being late, teams mobilize to phone the client, visit the business, and contact the guarantor or other people the customer knows, Helms said. If that doesn鈥檛 work, the bank will go to court, even for the tiniest amount.

In the past, squads would roam an errant customer鈥檚 neighborhood wearing T-shirts emblazoned with 鈥淩isk-Fighting Unit鈥 to shame the borrower into repaying, said Helms. The clear message: Pay your debts, and pay Bank of Taizhou before anyone else. With its reputation as a strict collector established, the bank no longer needs drastic tactics.

An ethos of discipline among employees is honed by military-style training unheard of among Western lenders.

At Bank of Taizhou鈥檚 training facility, people hired to be account managers and bank tellers spend up to three months learning the job.聽Half boot camp, half university, trainees bunk down six to a room, practice customer service at mock branches and are taught to count cash fast.

To steel them for future assignments, instructors 鈥 who must have had five years鈥 experience in the PLA 鈥 make students run 10 laps around the campus twice a day and teach them how to stand to attention and salute.

鈥淲e need to make it clear it鈥檚 not a job in the office,鈥 said Hu Xianpeng,聽a Bank of Taizhou senior economist in charge of the training program, dressed in adidas exercise clothing at the facility.

The tough ethos extends to headquarters, where Chinese maxims hang on meeting room walls: 鈥淓at bitter,鈥 鈥淏e honest,鈥 鈥淚nnovate.鈥

Helms ate some bitter himself in Taizhou, 400 kilometers (250 miles) south of Shanghai, when he arrived in 2005 on contract from聽Frankfurt-based聽IPC GmbH.聽European essentials like milk were tough to find. But more importantly, he initially faced objections from some senior staff to his seniority. And he had to win over employees with his new lending model 鈥 through an interpreter as his Mandarin was inadequate and many staff spoke a local dialect.

鈥淢y greatest talent is my resistance to frustration,鈥澛爏aid Helms, who stands 190 centimeters tall (6 feet 3 inches), dwarfing almost everyone in Taizhou, and sports short, dark-brown hair that鈥檚 starting to fleck with gray. 鈥淭hey are having me around to sometimes say no, to think differently, to be able to think out of the box and not be subject to the same mechanics that a Chinese employee in a Chinese bank is subject to.鈥

In IPC lending, salesmen ask a barrage questions to determine creditworthiness. Instead of collateral, borrowers suggest a guarantor who can vouch for them. Helms says many small businesses don鈥檛 have reliable records, so account executives might ask the same question in different ways: What鈥檚 your monthly income? Then later: What鈥檚 your annual income?

鈥淭hey鈥檙e looking for a lie, an exaggeration or a misconception,鈥 said Helms. 鈥淚t doesn鈥檛 have to be 100% accurate. It just has to be close enough to make a judgment.鈥

Key figures might be checked with a relative or another employee. According to Helms, it鈥檚 hard for business owners to maintain a lie. And despite the need to grill borrowers, most small businesses repay their debts, he said.

鈥淭hey don鈥檛 run away, they don鈥檛 do leverage, they just stay there,鈥 Helms said. 鈥淚t鈥檚 a low-risk thing.鈥 鈥 Bloomberg