On Acson's (Malaysian) website [http://www.acson-international.com/network.html] they mention there Pakistani counterparts as
Company:
HUMAK ENGINEERING (PVT) LTD.
On Daikin's (Japan) website [http://www.daikin.com/locations/business/ac/asia/index.html] they mention their Pakistani counterparts as
MIA CORPORATION (PVT) LTD.
SALES
Plot 384, Street 16, Industrial Area, Sector I-9, Islamabad, Pakistan
[Telephone]+92-51-444-5482-5
HUMAK ENGINEERING (PVT) LTD.
SALES
Plot 384, Street 16, Industrial Area, Sector I-9, Islamabad, Pakistan
[Telephone]+92-51-444-5482-5
So maybe Humak Engineering is owned by MIA corp? (They have the save phone number)
Question is, do their installation and after-sales service justify the heavy price on your pocket given that both are top-notch AC's