Starbucks Coffee has become one of China's biggest success stories of recent years. But that popularity did not come overnight. It's a result of China's economic rise and the US brand's smart strategies. And with a formidable competitor now threatening Starbucks' success, how will they respond? Han Peng has more.

In a country that has had a long and love affair with tea, Starbucks opens a new coffee shop in China every 12 hours.

JULIE LEI BEIJING RESIDENT "I think Starbucks is more than a place to have coffee. It's more of a place to socialize and hang out."

The US brand entered China nearly 20 years ago. Sales struggled in the early going. In fact, Starbucks China lost money for nine consecutive years. But the company's founder decided to stay the course.

HOWARD SCHULTZ FOUNDER OF STARBUCKS "I was one of the early CEOs in America saying how bullish and excited I was about the Chinese opportunity for Starbucks and the China market. We understood that there was a place in between home and work, which is the third place."

The result, China is now Starbucks' second largest market after the United States.

7 million loyal customers — the number tripled in just four years.

But today it faces challenges head-on from local brands, especially Luckin Coffee, a one-year-old local success which promises to deliver coffee half the price of Starbucks to your home and office within 30 minutes.

JEFFREY TOWSON PEKING UNIVERSITY "The market is so big potentially that if they get any degree of traction in the mass market retail coffee, they will be big and win big without touching Starbucks. Now, however, Chinese consumers are somewhat fickle in any industry just about, you see market shares swing every year. It would not surprise me at all if 10 or 20 percent of Starbucks volume shift."

That's partly why Starbucks decided to partner with Chinese e-commerce giant Alibaba this August.

Alibaba's nationwide food delivery platform Ele.me now delivers coffee for Starbucks.

KEVIN JOHNSON CEO OF STARBUCKS "Today's announcement is really a reflection of the fact that Alibaba is a world-class technology company. They have a shared vision around the future of retail and how you bring the offline experience with the digital experience together to create a new customer experience."

DANIEL ZHANG YONG CEO OF ALIBABA "We started from the virtual world, and Starbucks started from the real footprint on the ground. But now we are together."

The high-profile partnership came as Washington gets tough against Beijing on trade.

HAN PENG SHANGHAI "Any concern caused by the trade war?"

KEVIN JOHNSON CEO OF STARBUCKS "We are focused on our business, and on the things that we can do."

Despite challenges and uncertainties, Starbucks continues to invest in China. It opened its biggest worldwide store in downtown Shanghai, and the second largest in Beijing, in the past year.

Simply put, this US brand has shaped a Chinese lifestyle, and now, it cannot afford to lose in China.

Han Peng, CGTN, Shanghai."