Lydall, Inc.

Form 5500

LYDALL, INC.

180 Glastonbury Blvd. Suite 201, Glastonbury, Ct 06033 (860) 646-1233 EIN:06-0865505 Plan Admin:Alkegen Benefits Committee

Year	Plan Name	Participants BOY/EOY	Assets BOY/EOY
2022	Plan NameRETIREMENT INCOME PLAN FOR EMPLOYEES OF INTERFACE PERFORMANCE MATERIALS, INC. Plan #020 Participants BOY/EOY375 / 371 Assets BOY/EOY$36,544,240 / $35,257,922	2022	RETIREMENT INCOME PLAN FOR EMPLOYEES OF INTERFACE PERFORMANCE MATERIALS, INC. - Plan #020	375 / 371	$36,544,240 / $35,257,922
2022	Plan NameLYDALL 401(K) PLAN Plan #011 Participants BOY/EOY2,272 / 0 Assets BOY/EOY$143,138,730 / $0	2022	LYDALL 401(K) PLAN - Plan #011	2,272 / 0	$143,138,730 / $0
2022	Plan NameLYDALL WELFARE BENEFIT PLAN NO. 1 Plan #501 Participants BOY/EOY1,650 / 0 Assets BOY/EOY$0 / $0	2022	LYDALL WELFARE BENEFIT PLAN NO. 1 - Plan #501	1,650 / 0	$0 / $0
2021	Plan NameLYDALL 401(K) PLAN Plan #011 Participants BOY/EOY2,667 / 2,262 Assets BOY/EOY$129,655,893 / $143,138,730	2021	LYDALL 401(K) PLAN - Plan #011	2,667 / 2,262	$129,655,893 / $143,138,730
2021	Plan NameRETIREMENT INCOME PLAN FOR EMPLOYEES OF INTERFACE PERFORMANCE MATERIALS, INC. Plan #020 Participants BOY/EOY406 / 375 Assets BOY/EOY$48,286,203 / $36,544,240	2021	RETIREMENT INCOME PLAN FOR EMPLOYEES OF INTERFACE PERFORMANCE MATERIALS, INC. - Plan #020	406 / 375	$48,286,203 / $36,544,240
2021	Plan NameLYDALL WELFARE BENEFIT PLAN NO. 1 Plan #501 Participants BOY/EOY1,658 / 0 Assets BOY/EOY$0 / $0	2021	LYDALL WELFARE BENEFIT PLAN NO. 1 - Plan #501	1,658 / 0	$0 / $0
2020	Plan NameLYDALL 401(K) PLAN Plan #011 Participants BOY/EOY2,603 / 2,631 Assets BOY/EOY$119,030,233 / $129,655,893	2020	LYDALL 401(K) PLAN - Plan #011	2,603 / 2,631	$119,030,233 / $129,655,893
2020	Plan NameRETIREMENT INCOME PLAN FOR EMPLOYEES OF INTERFACE PERFORMANCE MATERIALS, INC. Plan #020 Participants BOY/EOY408 / 406 Assets BOY/EOY$41,151,341 / $48,286,203	2020	RETIREMENT INCOME PLAN FOR EMPLOYEES OF INTERFACE PERFORMANCE MATERIALS, INC. - Plan #020	408 / 406	$41,151,341 / $48,286,203
2020	Plan NameLYDALL WELFARE BENEFIT PLAN NO. 1 Plan #501 Participants BOY/EOY3,150 / 0 Assets BOY/EOY$0 / $0	2020	LYDALL WELFARE BENEFIT PLAN NO. 1 - Plan #501	3,150 / 0	$0 / $0
2020	Plan NameINTERFACE SEALING SOLUTIONS, INC. PENSION PLAN Plan #021 Participants BOY/EOY56 / 0 Assets BOY/EOY$2,081,967 / $0	2020	INTERFACE SEALING SOLUTIONS, INC. PENSION PLAN - Plan #021	56 / 0	$2,081,967 / $0
2019	Plan NameLYDALL 401(K) PLAN Plan #011 Participants BOY/EOY2,437 / 2,576 Assets BOY/EOY$92,534,042 / $119,030,233	2019	LYDALL 401(K) PLAN - Plan #011	2,437 / 2,576	$92,534,042 / $119,030,233
2019	Plan NameRETIREMENT INCOME PLAN FOR EMPLOYEES OF INTERFACE PERFORMANCE MATERIALS, INC. Plan #020 Participants BOY/EOY411 / 408 Assets BOY/EOY$40,397,958 / $41,151,341	2019	RETIREMENT INCOME PLAN FOR EMPLOYEES OF INTERFACE PERFORMANCE MATERIALS, INC. - Plan #020	411 / 408	$40,397,958 / $41,151,341
2019	Plan NameINTERFACE SEALING SOLUTIONS, INC. PENSION PLAN Plan #021 Participants BOY/EOY99 / 56 Assets BOY/EOY$2,214,853 / $2,081,967	2019	INTERFACE SEALING SOLUTIONS, INC. PENSION PLAN - Plan #021	99 / 56	$2,214,853 / $2,081,967
2019	Plan NameTHE LYDALL PENSION PLAN Plan #001 Participants BOY/EOY868 / 0 Assets BOY/EOY$48,983,811 / $0	2019	THE LYDALL PENSION PLAN - Plan #001	868 / 0	$48,983,811 / $0
2019	Plan NameLYDALL WELFARE BENEFIT PLAN NO. 1 Plan #501 Participants BOY/EOY3,378 / 0 Assets BOY/EOY$0 / $0	2019	LYDALL WELFARE BENEFIT PLAN NO. 1 - Plan #501	3,378 / 0	$0 / $0