Of course! they are included in 5 biggest vendor in the world. How come you deny saying the biggest 5 is not major vendor?
Furthermore your data is wrong either.
See Q1 2017, Huawei, Xiaomi + Oppo combined is already more than 20% market share.
See "Others" with 41% market share, most of them are chinese smarphone vendor (TCL, ZTE, Meizu, One+, Coolpad, Hisense, Haier, etc, etc).
Apple dont use Qualcomm, only some of Samsung use Qualcomm while the rest use Equinox.
So the chinese smartphone vendors must be the biggest consumers of Qualcomm's processor.
Now see Q1 2018.
Huawei market share is only 3.8% less than Apple
Xiaomi market share is more than half of the Apple
Oppo market share is about half of the Apple
So yes Huawei, Xiaomi and Oppo are major smartphone vendor in world.
And you still dont think that banning those chinese smartphone brands from buying Qualcomm processor wont make Qualcomm bankrupt?
In the beginning yes Lenovo may loose market share in the international market, because international market may not be ready with longsoon or senwei yet.
But Lenovo could survive with Chinese market alone - even take majority of China market share if China ban any notebook that doesnt use Longsoon & Senwei for protection purpose and retaliation. And for sure Shenwei and Longsoon will get boost within china market.
Then if Shenwei and Longsoon performance is good, Lenovo subsequently can offer their notebook with Longsoon/Shenwe into international market, and start to steal market share back from HP, Dell, Asus, Acer, and Samsung. In that case Lenovo + Shenwei / Longsoon can be formidable competitor of Intel & AMD in the market.
If china ban intel/amd, then Samsung, Asus, Acer could take advantage by using Shenwei/Longsoon too in order to grab market share in China.
Of course that is totally wrong.
Qualcomm etc must be sufferring much and risk bankrupt if they loose chinese smartphone clients. As shown above the chinese smartphone brands are main consumers of Qualcomm etc.
HP, Dell & Intel will loose their chinese market share due to china retaliation by banning them from entering china market.
Shenwei & Longsoon will start to get strongest market share in China, and become potential Intel's competitor in international market.
Kirin & S2 will become formidable competitors to Qualcomm.