British pair Richie Ramsay and Chris Wood were one shot further back on 212 along with Australian Richard Green.
World number 34 Jimenez would have ended the day as joint leader but for dropped strokes at the 15th and 18th.
"I'm a little disappointed with that," the Hong Kong Open champion told reporters. "I didn't hit it very well the last few holes.
"I played very well the first nine and was solid until the 14th but made a bad bogey on the 15th where I three-putted from eight yards."
(Writing by Tony Jimenez; editing by Justin Palmer)
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