(This article was originally published Thursday.)

--Investment manager sees water-related industries growing 6% to 7% a year

--Countries like India and China currently consume one-third of water per person compared with the U.S., but gap is narrowing

--Risk of investing in water is uncertainty in supply

 
   By Amy Or 
 

NEW YORK--A rapidly growing global population, the rise of the middle class in developing countries and aging infrastructure in the developed world are placing unprecedented strain on the world's water supply--and have created a multi-year, if not decade-long, investment thesis.

Simon Gotelier, an investment manager at London-based Impax Asset Management Group PLC (IPX.LN) said the world needs $450 billion to $500 billion of water-related investments on an annual basis across a wide range of industries: from the transport of water to the building of pipes and sewage-treatment plants.

He expects water-related industries will grow at 6% to 7% a year, an attractive rate of growth when the International Monetary Fund is predicting global economies will expand at a lackluster rate of 3.6% next year.

Investments in renewable energy like solar as alternative sources of power were all the rage about a decade ago. But frothiness in equities markets leading up to the financial crisis and subsequent austerity measures implemented as nations grappled to stabilize their economies meant subsidies to the sector have been scaled back.

Impax, which managed firmwide assets of $3 billion as of Sept. 30, switched to the broader investment thesis of improved energy efficiency right before the housing bubble burst.

It has a total of GBP224 million ($359 million) of investments in pollution control, water infrastructure and related technologies, including an EUR83 million ($108 million) France-domiciled mutual fund called BNP Paribas Aqua I, where Impax acts as an underlying manager. BNP Paribas Aqua I has risen more than 80% since its inception in December 2008, while the MSCI World Index, which is designed to measure the equity-market performance of developed markets, increased by about 17.32% during the same period. This year through Oct. 4, the fund was up 17.7%, beating the index's 8.9% return.

The fund counts U.S.-based companies like diversified manufacturer Danaher Corp. (DHR), industrial pumps and engineering-equipment manufacturer IDEX Corp. (IEX) and Watts Water Technologies Inc. (WTS), which makes products to control the efficiency, safety and quality of water, among its largest holdings.

"There has been two years of under-investment in the U.S., with 240,000 main breaks needing mending," Mr. Gotelier said. "There is huge pent-up demand for renovation for the water and waste system."

Mutual-fund research house FE Ltd. (FEL.AU) gave the BNP Paribas Aqua I fund its maximum score of five crowns--an equivalent to the five stars Morningstar Inc. (MORN) gives to top-performing mutual funds in the U.S.

While FE is prohibited by its U.K. license to give retail investors fund recommendations, its Investment Product Consultant Oliver Clarke-Williams said water, unlike other commodities, has no substitutes and that its scarcity is accentuated by the exponential increase in the demand for water in developing countries.

The risk, however, of investing in water is the element of uncertainty in supply. Several recent water-related disasters highlight the importance of clean water supply, and in the U.S., scorching heat in June and July sparked the worst drought since 1956.

"Weather patterns will have a huge impact on [supply] and therefore the price," Clarke-Williams said.

But for now, demand is growing fast. Countries like India and China are currently consuming just a third of the water per person compared with the U.S., and the gap is narrowing as their living standards improve.

A kilogram of beef, for example, takes 15,400 liters to produce--more than nine times the water needed to grow the same amount of paddy rice, Clarke-Williams said.

"It's not just a change to a more meat-based diet," Clarke-Williams said. "Increases in demand for alcohol, sugar and clothing will all lead to a dramatic increase in water consumption."

To make matters worse, water availability has been limited. Case in point: China, which accounts for 20% of the world's population, has access to only 7% of the world's water supply. Under a five-year economic plan outlined in 2010, China earmarked $450 billion to waste-water management and water-quality monitoring, a sum that will benefit water and sewage-related industries.

(Amy Or covers hedge funds for Dow Jones Newswires. She can be reached via email at amy.or@dowjones.com.)

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