PERRYJOHNSON, '

~_ REGISTRARS, INC.&'Ltifcahof cRegUhatlon

, Compañia Nacional de Abrasivos, S.4.de C;v.Avenida 1 de Mayo' # 1801 Oriente, Zona Industrial, Toluca, Estado de México, C.P.50071,

México

( dfs'Ú:ína{&", aaLtsd «.éJ"'gariizatton), and hs",sb-YdsaLdt",sithatéJ"'ganization is,in aonfounanú ,wlth:

Manufacture and Commercialization of Abrasives.Refractories andRamming Mixes

Clhii cRefjiitrwtion is. fjwnúd 1.ub-¡wt to the i!:Jj,tEm'lUt-i fjolJew¿nfj t~ cRefjiitwtion :'Zefe'l!ld to, ab-olJe, and the

O'Zfj'}-iÚzation ~'Zeb-!:Jaooenanis wíth t~ clfi~iimwt b-od!:Jdut:J to ob-iewe and compl!:Jwith t~ ia¿J 'lUt-i.

~r¡UKAS

, MANAGEMENTSYSTEMS

' .. ~ ,

ArfABPerry Johnson Registrars, Inc.(PJR)

755 West Big Beaver Road; Suite1340Troy, Michigan 48084

(248) 358-3388A c- e RED,' I T E o

!#i H,¡_alfilPERRY JOHNSONREGISTRARS, INC.

MANAGEMENT SYSTEMSCERTIFICATION BODY0105

The use'ojthe'UKAS accreditatíon symbol is in respect 1'0 the actívities covered by the Accreditation Certifícate Number 0105.

Clfu. IJaÚdU!j 0f thü CE'l.tifwate ts dependent upon ongo¿Y2fjiUwúf!a.nce.

EffeaU<Je:bafE.: éExfiw/ion :baiLe f3<ufwaiL dVo.:

.February 2, 2018 February 1,2021 C2018-00538