Authored by James Dorsey via MidEastSoccer blog,

Conventional wisdom has it that China stands to benefit from the US withdrawal from the 2015 international nuclear agreement with Iran, particularly if major European companies feel that the risk of running afoul of US secondary sanctions is too high.

In doing so, China would draw on lessons learnt from its approach to the sanctions regime against Iran prior to the nuclear deal. China supported the sanctions while proving itself adept at circumventing the restrictions.

However, this time round, as China joins Russia and Europe in trying to salvage the deal, things could prove to be different in ways that may give China second thoughts.

The differences run the gamut from an America that has Donald Trump as its president to a Middle East that is much more combative and assertive and sees its multiple struggles as existential, at least in terms of regime survival.

Fault lines in the Middle East have hardened because of Israel, Saudi and United Arab Emirates assertiveness, emboldened by both a US administration that is more partisan in its Middle East policy, yet at the same time less predictable and less reliable.

Add to this Mr. Trump’s narrow and transactional focus that targets containing Iran, if not toppling its regime; countering militancy, and enhancing business opportunities for American companies and the contours of a potentially perfect storm come into view.

That is even truer if one looks beyond the Gulf and the Levant towards the greater Middle East that stretches across Pakistan into Central Asia as well as China’s overall foreign trade.

China’s trade with the United States stood last year at $636 billion, trade with Iran was in that same period at $37.8 billion or less than five percent of the US volume.

The recent case of ZTE, one of China’s largest IT companies, tells part of the story.

Accused of having violated sanctions, the US Department of Commerce banned American firms from selling parts to ZTE, bringing the company to near bankruptcy. Mr. Trump appears to be willing to help salvage ZTE, but the incident significantly raises the stakes, particularly as China and the United States try to avoid a trade war.

That is but one consideration in China’s calculations. Potentially, other major bumps in saving the nuclear agreement lurk around the corner and could prove to be equally, if not more challenging.

Tensions in the Middle East are mounting. The fallout of Mr. Trump’s recognition of Jerusalem as the capital of Israel and seemingly unqualified backing of Israel in its almost certainly stillborn plan for peace with the Palestinian is reverberating.

Discontent across the region simmers just below the surface, magnified by youth and next generations in countries like Syria and Yemen who have little to look forward to.

The bumps fall into three categories: the degree to which China feels that...

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