By Wayne Ma 

HONG KONG--Hong Kong businessman Daniel Cheng was meeting clients in southern China on Aug. 11 when an urgent message from his finance manager appeared on his phone: The Chinese yuan had dropped 2% against the dollar.

Mr. Cheng was stunned. For the past three years, his revenues soared from selling wastewater treatment equipment to coal-gasification plants in China. His bottom line was boosted by a steadily strengthening Chinese currency that made the parts he purchased in euros from overseas suppliers such as Germany's Siemens AG and France's Schneider Electric SE cheaper to import.

Now he needed a rethink. Having just banked a payment of around 10 million yuan, he had to decide what to do with it. He advised his manager to sit tight in case the yuan bounced back.

By the time Mr. Cheng was back in Hong Kong a day later, the yuan had slipped further. Alarmed that it appeared the Chinese government was deliberately allowing the depreciation, Mr. Cheng bit the bullet and ordered his yuan stash be converted to Hong Kong dollars, a currency pegged to the U.S. dollar. He took a 3% hit in the process.

China's surprise decision to allow its currency to more closely reflect market valuations caught everyone doing business in or with the world's second-largest economy off guard. The delayed reaction by Mr. Cheng was typical of business owners because each had to make complex calculations depending on factors such as where they make and sell their products, and in what currencies they do deals.

Even a small move in currencies can be the difference between profit and loss for companies working in China's hypercompetitive industries, where factory product prices have declined for more than three years.

In Mr. Cheng's case, the move hurt him two ways. Besides losing out converting revenue made in China--his biggest market--it also increased the cost of the imported components he bought in euros. Even so, he said his operating margins meant he could absorb the loss and remain profitable.

While the yuan has stabilized at about 2.8% down on the dollar from Aug. 10, the central bank's decision has raised fears among business owners that China's economy may be slowing more than thought. Investors are further spooked by plummeting Chinese stock prices that have wiped 38% off Shanghai's benchmark index since mid-June.

Jolted by the currency move, Mr. Cheng, managing director at Hong Kong-based Dunwell Group, is now seeking to readjust his operations.

Mr. Cheng has contacted foreign suppliers to ask that they quote prices in yuan. "We have to pay in whatever currency they ask for. They won't lock in the price for us," Mr. Cheng said at his office, located next to one of the firm's manufacturing plants in a Hong Kong industrial park. "We're not a giant company...we don't have that kind of leveraging power."

Mr. Cheng also started scouring for replacement suppliers within China.

Mr. Cheng's exposure to the yuan has increased over the past three years as China replaced Hong Kong as his main market. He has hived off as much as 70% of manufacturing to China and sources more parts there to reduce currency risk, but he continues high-end assembly in Hong Kong and still needs foreign parts.

Sourcing products from within China is an effective way to reduce risk. Willy Lin, the managing director of a half-century-old family firm making sweaters in China, moved all its manufacturing to China from Hong Kong around the turn of the century. That was just as the yuan ended its peg and began a long march of appreciation against the dollar, increasing costs of imported raw materials including cashmere yarn. Now he sources 90% of his raw materials in China. Mr. Lin stands to gain from overseas sales if the yuan's value remains lower or slips further, because he is paid by overseas customers in foreign currency.

Mr. Lin's trading savvy comes from hard-earned lessons over the past three decades. He weathered a massive Chinese devaluation of the yuan in 1994, when it dropped by a third after China first unified exchange rates for domestic and foreign companies. And, in the 1997 Asian financial crisis, he dealt with jumping labor costs in China as its then dollar-pegged yuan soared relative to Asian neighbors such as Thailand, where currencies were depreciating.

Mr. Lin, like many Hong Kong businessmen whose fortunes are closely intertwined with China, protects himself against volatility by buying currency in advance at fixed rates through forward contracts.

Such tactics are common among those most heavily exposed to foreign currency swings, such as Stanley Lau, who manufactures watches for high-end brands. His firm imports components from Europe to assemble at his factory in southern China and then sells the finished products back overseas, with most of his deals done in Swiss francs.

When the Swiss franc depreciated after he booked an order, he earned less than he thought on the deal. As a result, he hedges about half his risk.

"We pay a little bit of premium for the insurance," he says.

That premium is going up. Before the Aug. 10 devaluation, a company would have paid a 2% premium to hedge its exposure to the Chinese yuan for six months. Since then, the premium has more than doubled to 4.67%.

Mr. Cheng, the wastewater treatment entrepreneur, said he doesn't think the cost of hedging is worth it for the size of deals he makes.

His company's wastewater systems are custom-designed, he said, so sometimes there are so many parts bought in different currencies that fixing the cost of one of them wouldn't make sense.

With profit margins ranging between 15% and 20%, Mr. Cheng's firm has a cushion that other manufacturers, such as textiles makers, don't have, he said. Besides, he said, the currency move was relatively small.

"It's not the end of the world," he said. "The important thing is to try to get the next job."

Anjani Trivedi contributed to this article.

Write to Wayne Ma at wayne.ma@wsj.com

 

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(END) Dow Jones Newswires

August 24, 2015 13:45 ET (17:45 GMT)

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