The order is in sync with the latest UN sanctions.

All North Korean companies in China will be shut by January, a BBC report added.

Earlier this month, Beijing, Pyongyang's main ally, limited its oil export to the latter and placed a ban on textile trade between the two nations.

Thus far, Beijing remained the only country which was a source of hard cash for Pyongyang.

China decision comes after the UN decided to levy sanctions on the reclusive nation, following its hydrogen bomb test earlier this month.

North Korea also stand accused of launching two projectiles over Japan and threatening the latter.

The projectile was launched over northern Japan's Hokkaido island.

Following the launch, Pyongyang said through its state news agency KCNA that 'the four islands of the (Japanese) archipelago should be sunken into the sea by the nuclear bomb of Juche'.

The test was condemned by world leaders, including UN Secretary General Antonio Guterres, who said, "I condemn the latest North Koreanmissile launch and call for DPRK to stop tests, abide by UN resolutions & begin dialogue immediately."

However, the latest turn of events, which unfolded earlier this week, between US President Donald Trump and North Korea supremo Kim Jong-un, has kept other surrounding nations on their toes.

Attending the UN General Assembly, Trump came down severely on Kim, terming the latter as 'rocket man' on a 'suicide mission'.

Kim reportedly took it to heart, as he made a rare speech, promising to make 'dotard' Trump pay dearly.

He ever said that his choice of developing nuclear weapons for his country was right, as he accessed Trump's speech as a 'war threat'.

Meanwhile, China's ban will come into effect from Oct 1.

Earlier, Trump had urged China to stop fuel supply to North Korea, a move that would have stalled Kim's ambitious nuclear project.

Along with oil and textile, other sanctions faced by North Korea are:

Last month, the UN slapped North Korea with several sanctions.

Importing coal, seafood, iron and iron ore, lead and lead ore from North Korea is banned.

No country can hire or receive North Korean workers.