If Uber Technologies Inc. is planning a retreat from Asia, no one told Brooks Entwistle, head of the ride-hailing company's business in the region.

The San Francisco-based company is planning an expansion in Japan and is offering faster booking and cheaper rides to improve market share in Singapore, Entwistle said. Despite recent speculation that Uber may withdraw from the region after SoftBank Group Corp.'s investment in the company, he said that's simply not the plan.

"I have been given absolute instructions to run and grow the business," said the 50-year-old, who was previously chairman for Southeast Asia at Goldman Sachs Group Inc. "That's what I'm doing, and that's what I'm going to do."