At the beginning of the new year, I was drawn to headlines touting China “opening its doors to ethanol imports.” The government had decided to drop its import tax on ethanol – a sugar-based biofuel typically used in vehicles – from 30% to 5% starting January 1st.

In December, the two countries’ state-owned oil and gas companies PetroChina and Petrobras signed an MOU to build ethanol production projects in Brazil. The project was specifically aimed at exporting ethanol from Brazil to China, though no numbers were given.

Was China getting more serious about developing its biofuels industries? Would Brazil, the world’s biggest ethanol success story, have a giant role to play? I smelled a scoop.

For Americans like myself, the word “ethanol” brings to mind the US’s controversial foray into corn ethanol production, which began in earnest about 10 years ago. I’m not too interested in rehashing the arguments and data for and against the corn ethanol industry in the US (though, file me under ‘naysayer’). However, Brazil’s sugarcane-based ethanol industry (second to the US by production but far more sustainable, carbon-efficient and wide-spread) is probably worth a paragraph, if not a glance at its Wikipedia page.

Brazil, with abundant land resources and heavy rainfall, is an ideal place for growing lots of sugarcane. It is grown sustainably and not on deforested Amazon land. Sugarcane’s higher sucrose content makes it much more efficient than corn, and government subsidies were phased out completely in the 1990s. Cars (92% of new ones) in Brazil run on a mix of ethanol and petrol. The system has been invested in and promoted for about 30 years. By pretty much all measures, it works.

China’s ethanol industry also has its roots in the 1970s and 1980s, from grain overproduction in certain years. With tons of rotting grain on their hands and no good way to store it, the authorities decided fermenting it and turning it into fuel was a feasible option. Things progressed slowly but steadily (China was even a net ethanol exporter in 2006) until five years ago when the use of food crops for ethanol was banned because of rising food prices and concerns over scarcity.

The same fuel-vs-food debate that made ethanol so contentious in the US had delivered a major blow to China’s industry.

I recently interviewed Rob Earley, an expert on biofuels in China for iCET, for my day job. He brought me up to speed on China’s present ethanol industry (and the serious structural challenges impeding its development). You can read the full interview here (need to first register for free). Here is the exchange relevant to the Brazil-China ethanol connection.

Q: As of the first of the year, China lowered its import tax on ethanol. Do you expect this move to affect the ethanol landscape in the country?

A: You have to look at the fundamental question: Why is China interested in biofuel? The answer, at least in my experience, is completely based on energy security. If they’re importing ethanol, it doesn’t improve their energy security greatly considering that the (world’s) supply of ethanol is probably more limited than the supply of oil at present. In terms of diversifying sources of energy, it’s not a bad thing. But realistically, the biggest source of ethanol is from sugarcane in Brazil, and if China and Brazil aren’t getting along, that supply gets cut off. Since there is no policy push for low carbon fuels in China right now, then there is no carbon rationale for using biofuels in China. I don’t think the import tax is going to make a big difference, but anything is possible.

So, this begs the question: Why do it, then? Earley said he couldn’t offer an explanation.

It’s worth remembering that China and Brazil are already closely intertwined when it comes to energy. Last May, China loaned Petrobras US$10 billion to secure a steady supply of oil. The Asian country also overtook the US as Brazil’s largest trading partner for the first time the month previous. Ethanol will probably never replace oil as a primary fuel source in China nor will it likely even surpass oil in importance in the China-Brazil trade relationship. However, it’s not impossible to imagine ethanol trade significantly changing the two countries’ current energy trade relationship (oil produced in Brazil, exported to China). Consider the following:

Diversifying energy sources – As Earley mentions above, it is in China’s interest to diversify its energy sources. Yes, importing ethanol from Brazil does not change China’s dependence on a foreign country for energy, but ethanol does offer much better price stability.

The table is set – The same energy giants (PetroChina and Petrobras) that are responsible for Brazil-China oil trade would be the ones taking on ethanol. Ramping up ethanol trade would not require new companies cutting in on entrenched state-owned interests. Ethanol would simply become a new stream of business for those already involved.

Oil already ties the two together – It’s true that China (and all countries) would rather not depend on foreign countries for energy, but the reality is China has little choice right now. Compared with China’s other oil suppliers (the Middle East, Russia, Central Asia, Africa, Venezuela), Brazil looks pretty good stability-wise. If importing ethanol from Brazil could displace some oil imports from, say, Sudan or Iran, wouldn’t this make China’s fuel portfolio a bit more stable, which is the stated goal?

The cars are a-comin’ – The number of cars on China’s roads is set to sky-rocket in the coming decade. If the country is to realize its goal of cutting energy intensity by 40-45% by 2020, it must keep vehicle emissions within reason. Costs for setting up the infrastructure for ethanol-fueled cars would be significant, but would pay for itself economically and environmentally.

Jump-starting things back home – China’s domestic ethanol industry is not dead, mind you. It’s just not a big priority right now. Working closer with Brazil on ethanol could result in China gaining the technology and experience necessary to revitalize its own ethanol industry, which is all but certain to miss its 2010 production target.

Image: Wired