You cannot. Because it was a custom hand-drawn logo, there is no official, licensed TTF (TrueType Font) file called "Khong Guan."
If you cannot find the perfect match, make it. Here is a mini-tutorial for designers. Khong Guan Font
Not just a blue tin. blue tin. The oblong metal box with the gabled lid, the serene pastoral scene (sheep, a stream, a distant cottage), and those bold, chunky red letters spelling out Khong Guan . You cannot
When you see that font in a meme, on a t-shirt at a hipster flea market, or tattooed on the forearm of a nostalgic 35-year-old, it represents a shared heritage. It represents the clinking sound of a metal lid being pried open, the smell of butter and malt, and the promise of a sugar rush before homework. Not just a blue tin