Exhibit 21

Kadant Inc.

Subsidiaries of the Registrant

At February 17, 2023, the Registrant owned the following subsidiaries:

Name								State or Jurisdiction of Incorporation	Percent of Ownership
Kadant Black Clawson LLC								Delaware	100
	Kadant Japan K.K.							Japan	100
	Sundance Partners LLC							Delaware	100
		Verus Lebanon, LLC						Delaware	100
Arcline Products LLC								New York	100
Kadant Fibergen Inc.								Delaware	100
	Kadant GranTek Inc.							Delaware	100
		Kadant Composites LLC						Delaware	100
Cogent Industrial Technologies Ltd.								Canada	100
Fiberprep Inc. (31.05% owned by Kadant Lamort SAS and 68.95% owned by Kadant Inc.)								Delaware	100
Kadant Cayman Ltd.								Cayman Islands	100
Kadant PAAL LLC								Delaware	100
Kadant Northern U.S. LLC								Delaware	100
	Nicholson Manufacturing Company LLC							Delaware	100
	VK North America LLC							Delaware	100
Kadant Syntron Holdings, LLC								Delaware	100
	Syntron Material Handling Group, LLC							Delaware	100
		Syntron Material Handling Holdings, LLC						Delaware	100
			Syntron Material Handling Intermediate Holdings, LLC					Delaware	100
				Syntron Material Handling, LLC				Delaware	100
					Syntron Material Handling Holdings Limited			Hong Kong	100
						Syntron Material Handling (Changshu) Co., Ltd.		China	100
							Syntron Material Handling (Changshu) Trading Co. Ltd.	China	100
Kadant Johnson LLC								Delaware	100
	Kadant Australia Pty Ltd							Australia	100
		Kadant Johnson Australia Pty Limited						Australia	100
		Kadant Johnson Corporation Asia Pacific Pty Ltd						Australia	100
	Kadant Johnson Argentina S.A. (99% owned by Kadant Johnson LLC and 1% owned by Kadant Johnson Latin America Holding Inc.)							Argentina	100
	Kadant Johnson China-TZ Holding Inc.							Michigan	100
		Tengzhou Feixuan Rotary Joints Manufacturing Co., Ltd.						China	100
	Kadant Johnson Latin America Holding Inc.							Michigan	100
		Kadant South America Ltda. (99.9% owned by Kadant Johnson Latin America Holding Inc. and .1% owned by Kadant Johnson LLC)						Brazil	100
	Kadant Johnson Holdings Inc.							Michigan	100
	Kadant Unaflex LLC							Delaware	100
	The Johnson Corporation de Mexico S.A. de C.V.							Mexico	100
East Chicago Machine Tool Corporation								Indiana	100

Name										State or Jurisdiction of Incorporation	Percent of Ownership
Kadant International Holdings LLC										Delaware	100
	Kadant Asia Holdings Inc.									Mauritius	100
		Kadant Fiberline (China) Co., Ltd.								China	100
	Kadant Luxembourg Holdings S.à r.l. (62.3% owned by Kadant International Holdings LLC and 37.7% owned by Kadant Inc.)									Luxembourg	100
		Kadant Northern UK Co. Ltd.								United Kingdom	100
			Valon Kone Oy							Finland	100
				Valon Kone OOO						Russia	100
				Valon Kone AB						Sweden	100
		Kadant Luxembourg S.à r.l.								Luxembourg	100
			Kadant Johnson Europe B.V.							Netherlands	100
				Kadant Canada Corp.						Canada	100
					Nicholson Manufacturing Ltd.					Canada	100
					Kadant Cyprus (Canada) Limited					Cyprus	100
					Kadant UK Holdings Limited					United Kingdom	100
						Fibertek U.K. Limited				United Kingdom	100
							Kadant U.K. Limited			United Kingdom	100
								D.S.T. Pattern and Engineering Company Limited		United Kingdom	100
									Vickerys Limited	United Kingdom	100
									Winterburn Limited	United Kingdom	100
								Radiance SAS		France	100
						Kadant Mexico, S.A. de C.V. (99.998% owned by Kadant UK Holdings Limited and 0.002% owned by Kadant Johnson Europe B.V.)				Mexico	100
				Johnson-Fluiten Srl						Italy	50
				Johnson Corporation (JoCo) Limited						United Kingdom	100
				Kadant Johnson (Wuxi) Technology Ltd.						China	100
				Kadant Johnson Systems International Limited						United Kingdom	100
				Kadant Lamort SAS						France	100
					Kadant BC- Lamort UK Limited					United Kingdom	100
					Kadant Lamort SL					Spain	100
					Kadant Lamort S.r.l.					Italy	100
				VN Services NV (99.95% owned by Kadant Johnson Europe B.V. and 0.05% owned by Nicholson Manufacturing Company LLC)						Belgium	100
				Kadant Noss AB						Sweden	100
				Joh. Clouth GmbH						Germany	100
					Alcaidesa AG					Switzerland	100
						Joh. Clouth Composite Technology Spolka z. o. o. (40% owned by Joh. Clouth GmbH and 60% owned by Alcaidesa AG)				Poland	100
					Clouth & Kochenrath Beteiligungs GmbH					Germany	100
					Clouth Sprenger GmbH					Germany	100
						Clouth Sprenger, LLC				Ohio	100
					Clouth MBE Verwaltungs GmbH					Germany	100
					Joh. Clouth Technical Service GmbH					Germany	100
					Joh. Clouth PaperTec GmbH					Germany	100

Name					State or Jurisdiction of Incorporation	Percent of Ownership
		Joh. Clouth Beteiligungs GmbH			Germany	100
		Joh. Clouth Services Ltd.			Canada	100
	Kadant Johnson Deutschland GmbH				Germany	100
		Kadant PAAL Holding GmbH			Germany	100
			Kadant PAAL Limited		United Kingdom	100
				J&H Rentals Limited	United Kingdom	100
			Kadant PAAL SAS		France	100
			Kadant PAAL GmbH		Germany	100
			Kadant PAAL S.A.		Spain	100
	Kadant India Private Limited (99.9% owned by Kadant Johnson Europe B.V. and 0.1% owned by Kadant Lamort SAS)				India	100
	Kadant Nordic AB				Sweden	100
	Kadant Johnson Systems International - S.r.l.				Italy	100