iDevices maker Apple has pumped in $1 billion in Didi Chuxing (formerly known as Didi Kuaidi) to understand the Chinese market, make future collaborations and to get a strong return on its investment, reported Reuters, quoting Apple CEO Tim Cook. Apple’s stake in the company is yet unknown.

The Reuters report added that this was Didi’s single largest funding ever, in addition to the $7 billion it has raised previously. Didi claims to do 11 million rides every day and has an 87% market share in private car-hailing in China (source unknown). The company provides vehicles and taxis for hire through mobile apps. It claims to have 300 million users in 400 cities in China. Didi already has investors in Alibaba Group and Tencent Holdings.

If podcaster Amir Efreti’s tweets are anything to go by, the company will merge some Apple products into Didi, while also partner with other companies for self driving cars. Apple Pay was introduced in China in February.

Apple’s attempt to understand China shows how radically different it must be to operate in China, as compared to its home ground, the US.

Some of its recent troubles:

Cook’s statement about “understanding China better” comes at a time when the company’s revenue in China, its biggest market outside the US, is sliding, while Apple is also closing all its iBooks Store and iTunes Movies services in the country. The new iPhone, however, seems to have worked well in China.

In panic or otherwise, Carl Icahn also sold his 45.8 million shares in the company for the fear of the company possibly shutting down by orders from China’s ruling Communist Party. (This has not happened yet.)

Some reports say that Cook is planning to get on a plane to China. Meanwhile, it also looks like Apple cannot decide on whether to make a self-driving or an electric car, as indicated by this New York Times report from September last year. Also, this car “product” codenamed Project Titan is slated for a 2020 release. Despite this, Cook, has offered a more public friendly statement such as, “We remain really optimistic on China.”

Global taxi alliance across Southeast Asia:
In December last year, America’s Lyft, Ola from India, Didi Kuadi from China, and GrabTaxi from Singapore joined hands in a strategic alliance to roll out products in the first quarter of 2016. Last month American Lyft users could get a cab in China through Didi and GrabTaxi in Southeast Asia. This alliance is a follow up of reports from January 2015 when Ola was planning to tie with GrabTaxi to form a global taxi alliance to take on Uber. In September 2015, Didi Kuadi invested in Ola’s $225 million round of funding. Didi has also invested $100 million into Lyft, and it participated in a $350 million round of funding for GrabTaxi.

Uber’s global payments: Uber, on the other hand, has tied up with Paytm to let Indians travelling abroad pay with Paytm for their Uber rides, following an announcement of a global partnership with Alipay to enable Chinese travelers to request and pay for rides from either the Uber or the Alipay app. Uber operates in 45 cities in China, and has plans to expand to 100 cities by end of 2016.