Print making is an alternate form of creative graphic expression. In his print series Dr Choong explored and employed texture, freer brush strokes and colour variations to obtain a more expressive result. He often combined un-defined areas and geometric shapes in his etchings to convey the sense of confronting elements/forces of the world we live in. In the lithography series, he took full advantage to employed brush stroke and staining technique to achieve the characteristics of Eastern painting

锺博士把版画创作当作是一种交替创意的表现。他相信版画中的腐蝕石版，鋅版及絹印的各种多变又复杂的技法和过程工序，可以促发和丰富绘画的創作。在版画创作中，他綜合了自由奔放的笔触，鲜明的色彩，不定形区域和几何图形來传达我们居住环境中两种相对的的形势和原素的概念。版画所运用的技法和构图，正是他纽约系列中的油画的呼应和回响。在石版画系列中，他比较喜欢用书法线条和渲染手法来营造东方水墨的趣味。

Peace 4/5		Seated Figure 4/5
1965		1966
Colour etching		Lithograph
45 x 32 cm		44 x 34 cm
Artist Collection		National Art Gallery Collection
Seated Nude 4/8		Rose 7/18
1967		1967
Lithograph		Etching
31 x 24 cm		45 x 23 cm
Artist Collection		Artist Collection
The Flight 8/9		The Eraode Surface 12/12
1967		1967
Etching		Colour etching
23 x 44 cm		29 x 44 cm
Artist Collection		Artist Collection
Nostalgia 6/7		The Conflict 2/3
1968		1967
Lithograph		Etching & collograph
26.5 x 35 cm		45 x 45 cm
Artist Collection		Artist Collection
The Mergence 3/6		The Growth 5/7
1967		1966
Etching & collograph		Etching
45 x 55 cm		30 x 45 cm
Artist Collection		Artist Collection
Reclaining Figure 4/7		5th Month Festival II 3/13
1968		1977
Lithograph		Silkscreen
34 x 44 cm		31 x 32 cm
Artist Collection		Metropolitan Museum of Art, New York Collection
		National Art Gallery Collection
5th Month Festival		Inheritance 9/30
1977		2012
Silkscreen		Silkscreen
31 x 45 cm		23 x 23 cm
Metropolitan Museum of Art, New York Collection		Artist Collection
National Art Gallery Collection