This is 10 years ago story prior before 1997. Since then KLSE no longer a major attraction for foreign investors (for equities market). This part still really puzzling me of its listing in KLSE, may be got some relationship with Antah shareholder previously. That's my guess only.
Again, explain 12352 times already,

(joking only)

how large, how many employee, how tall the company building, how sizeable the company is not the most important matter, what matter most for the stock market and its share price is its earning ability, competitiveness and able to generate profit in term of dividend to the shareholders.
Sizeable of company, number of employee never a good benchmark comparison as different industry has different nature of business which is not comparable. Mining company surely is more labour intensive and work on sizeable area, while for tobacco company like BAT, it might be having less than 100 employee and with a small factory but still able deliver the same revenue and profit compared to 10,000 workforce company. So can't really use those figure to compare, the key issue is always efficiency, competitiveness of the company within the industry and ability to generate profit and create wealth to the shareholder.
Financial report basically reveal almost the details of the company (like how much worth of those sizeable building/ work area already), so it is much better look at its financial reportf or justification rather than looking at the size of the company. No offence and don't get me wrong, not saying it is not good or good (as above statement is a more general statement, not specifically towards Huaan issue), just to highlight what to focus when evaluating a company or stock.
Just my 2 cents.
I know some company big size but not doing well... However size makes them NOTICIBLE. Imagine if investors are visiting china, then the saw that plant... first thing in their mind is "WHAT THE HACK IS THAT ?" if the company is small, they might not even notice it.
When people notice, people will try to find out... when they see the company financials they will decide ( with HUAAN type of financial results and business, very likely they will pump in money ). A lot of small companies who did very well but get un-noticed. They are simply not visible and dont have capacity if needs arrises... even if someone wants give them big business, they cant cope.