Editing Loose leaf (section)

=== Different countries/regions ===
ISO-sized loose leaves are most often designed and manufactured in Japan, mainland China and Taiwan.

==== Japan ====
Japan is a major contributor to the market of ISO-sized loose leaves. In Japan, sizes of loose leaves such as A4, B5, A5, A6, A7 and special sizes such as "bible size / diary size" (e.g. by Raymay DaVinci) and are sold. Notable Japanese manufacturers include Kokuyo Co., Ltd. ({{ill|コクヨ|lt=|ja|コクヨ}}) and Maruman Co. Ltd. ({{ill|マルマン (文具)|lt=|ja|マルマン (文具)}}).

Kokuyo's products sell internationally and are available in the Chinese, European and North American markets as well.

MUJI (無印良品, see {{ill|良品計画|lt=|ja|良品計画}}) has retail stores worldwide, selling products including ISO-sized loose leaf paper, even in North America where ISO sizes are not commonly used.

Both Kokuyo and Maruman manufacture pre-printed calendar loose leaf packages sold for one calendar year.

Kokuyo's loose leaves are sold all over the world, and can be found in North American and European markets.

Lihit Lab (リヒトラブ) produces a special type of loose leaf, with rectangular holes (instead of round ones) with non-standard spacings. Lihit Lab sells special ring binders to fit its loose leaves.

Maruman manufactures and sells a special size called Mini B7 (ミニ size, 86 x 128&nbsp;mm).

==== Mainland China ====
Many loose leaf products are imported from Japan to mainland China. Kokuyo sells Chinese market-specific versions of pre-printed calendar loose leaf packages.

==== Taiwan ====
SEASON (四季纸品礼品) is a major manufacturer of different sizes of loose leaves in Taiwan.{{Citation needed|date=March 2023}}