Huawei is the world's second largest smartphone maker by volume.
Amid trade tensions with Beijing, US President Donald Trump recently banned US groups from trading in telecommunications with foreign companies considered dangerous to national security, a measure aimed in particular at Huawei, the Chinese telecommunications giant, considered a "black sheep" by Washington.
Customers who already have Huawei phones will still be able to use the apps and receive updates, Facebook representatives told Reuters. But the new Huawei phones will no longer be able to have Facebook, WhatsApp and Instagram applications pre-installed.
Smartphone retailers often offer customers pre-installation of popular applications such as Facebook. Apps like Twitter and Booking.com are also pre-installed on Huawei phones in many markets. Twitter representatives declined to comment, and Booking Holdings did not respond.
Facebook's decision to affect Huawei's sales, given that smartphone sales generated most of the Chinese group's revenue last year, amid strong growth in Europe and Asia.
Huawei officials declined to comment.
The American giant Google, whose Android mobile operating system equips the vast majority of smartphones in the world, has announced that it will start suspending its relations with the Chinese telecommunications company Huawei, which is one of those considered "risky" by Washington . But Google Playstore and all Google apps are still available on current Huawei phone models, even those that haven't been delivered or produced yet.
In contrast, the Facebook ban applies to any Huawei device that has not yet left the factory, say sources who wished to remain anonymous. Facebook officials declined to say when the suspension will take effect.
Huawei has assured that it is ready for the US decision and is committed to resolving any disturbances. But customers at stores in Europe and Asia have told Reuters they are reluctant to buy Huawei phones because of uncertainty. Analysts have also warned that Huawei could face a 25% drop in deliveries this year, and there is even the possibility that its smartphones may disappear from international markets.
Huawei's deliveries could fall 4% to 24% this year if sanctions remain in place, according to analysts at Fubon Research and Strategy Analytics. Technology companies such as Google and ARM have also announced that they will stop deliveries and upgrades to Huawei.
"Huawei could disappear from the Western smartphone market next year if it loses access to Google," said Linda Sui, director of Strategy Analytics.
She estimates that Huawei's deliveries could drop by another 23% next year, but she believes the company will survive because of its market share in China.
Fubon Research, which previously predicted that Huawei will deliver 258 million smartphones this year, now expects just 200 million units, at worst.
According to IDC, Huawei has a market share of almost 30% globally and last year delivered 208 million smartphones, half of which were in markets outside China. The company's most important market for premium models is Europe.
Potential buyers of Huawei devices are likely to target smartphones made by Samsung Electronics and Apple Inc., analysts say.