What is the source for this paragraph? The 27th Army of IXth Army Group was based in Shijiazhuang, Hebei. That's not Southern China. The 20th Army of IXth Army Group was HQed in Kaifeng, Henan. The narrative doesn't sound right.
Hundreds of thousands of ROC army troops surrendered to the PLA. Those guys were well equipped. CPC troops had long operated and fought in Northern China, during WW2 and the Civil War. How could it be that China could not procure or salvage winter clothing for a mere 250k CPVA that fought in the first phase of the intervention?
meh...you can't use their post-1980s location to locate these corps in 1950.
The 9th Corps Group was part of the 3rd Field Army, and the 3rd Field Army was the main force in east front of Campaign Crossing Yangtze in April 1949.
After captured Nanking and Shanghai, the 9th and 10th CG marched southwards along the coastline. In 1950, their priority mission was to guard the coastline in Fujian, Zhejiang, and launch attacks to liberate coastal islands.
There is no argument about where did the 9CG begin to mobilize.
---------------------------------------------------------------------------------------------------------------------------
As for why 9CG did not swap to winter clothes, well...
The military logistic department and local government had prepared enough winter equipment, but because someone committed a totally NUTS treason crime, 9th CG lost their time to swap their gears.
That traitor was the vice-president of China's Democratic Union (中国民主同盟,民盟), Zhang Dongsun (张东荪).
About his treason action, well,
he made a very bold move for a very coward cause. It was so pointless that hard to start the story.
Ok, here. The state of PRC was constructed by the first Chinese People's Political Consultative Conference, in September 1949. CPC invited all major political parties (even the left-wing faction of KuoMinTang) to built a new country. With his reputation, his high position in CDU, and his effort in the peaceful liberation of Beijing, Zhang got a membership in Central People's Committee (another CPC lol), the government's top policymaking body.
Soon, Zhang turned out that he was a soooo deeply-rooted US worshipper. Despite all clear hostility from US, he still strongly opposed the foreign policy to completely side with USSR.
From here, you need to follow up on his mental gymnastics to understand the whole thing.
After the decision of Repel US and Aid Korea was made, Zhang believed it would expand into WW3, and the socialist camp would lose, and China would end up in unspeakable misery.
So, Zhang took action that he thought could avoid the result he imagined. He decided to persuade the American to spare China.
In Zhang's logic, by building contact with US, he could prove some usefulness for Americans. Then he could save people that he thought could represent the essence of Chinese culture, get some space in the puppet government imposed onto China, etc. to preserve China in another form. As for the damage he could make, Zhang didn't even consider it since he believed the fail of China was such a certainty that his move would change it at all.
To prove his sincerity and usefulness, Zhang Dongsun reached a KMT spy named Wang Zhiqi (王志奇), who claimed he had channels to the US. Zhang gave Wang many intels, the most vital one among them was, well, just as you guessed, the timetable and the route of 9th Corps Group. Wang had been on the suspect list, and Zhang was a real amateur of secret action, the whole thing was busted very soon, but still too late.
CPV could not take the risk of 100000 troops got bombed in transport or march into an ambush, they must move faster than the enemy could react. The whole schedule was hastened to an extreme. Trains skipped all stations, left mountains of thick clothes and shoes behind.