UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER PURSUANT TO RULES 13a-16 AND

15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For ~~April~~July 2722, 2005

SUPERMERCADOS UNIMARC S.A.

(UNIMARC SUPERMARKETS, INC.)

(Translation of registrant's name into English)

Avda. Presidente Eduardo Frei Montalva No.1380 - Renca

(Santiago de Chile, Santiago)

(56 2) 687 - 7000

__________________________________

Form 20-F Form 40-F

Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to rule 12g3.2(b) under the Securities Exchange Act of 1934

Yes No

Supermercados Unimarc S.A.

Report on Form 6-K

Table of Contents

A free English translation from Spanish of a filing by the Company with the Chilean Securities and Insurance Superintendence relating to the Essential Fact about the ~~Board~~Chief ofExecutive ~~Directors~~Officer of the society.
A filing indicated in (1) in Spanish.

SANTIAGO, ~~April~~July 2722, 2005

DA.039/05
Mr.

Alejandro Ferreiro Y.

Securities and Insurance Superintendent

Chilean Securities and Insurance Superintendence

Present

Ref.: Registration in the Stock and Securities Registry under number 447

Under my consideration:

As per the section ninth and second clause of the section tenth of Law number 18.045, and as per General Regulation number 30 ~~issued by the Chilean Securities and Insurance Superintendence~~, herein I send you a report of certain ~~relevant~~essential ~~events~~facts about the company ~~and the public offering~~.

Sincerely yours,

~~Eduardo~~/s/ ~~Viada~~Francisco ~~Aretxabala~~Javier Errazuriz Ovalle

~~Chief~~Francisco ~~Executive~~Javier ~~Officer~~Errazuriz Ovalle

President

pp. Supermercados Unimarc S.A.

Copy: Santiago Stock Exchange

Valparaiso Stock Exchange

Electronic Stock of Chile

General file

ESSENTIAL FACT

SUPERMERCADOS UNIMARC S.A.

~~Inscription~~Pursuant ~~Registers~~to ofLaw ~~Values~~number ~~No.~~18,045, ~~447~~article 9, and according to the General Bylaw number 30, herewith we attach certain information qualified as essential for the company.

~~According~~In the Board Meeting held with this date, it was agreed to ~~article~~accept ~~ninth~~Mr. ~~and~~Eduardo ~~paragraph~~Viada ~~second~~Aretxabala ofresignation ~~the~~as ~~article~~Chief ~~10,~~Executive ~~both~~Officer of the ~~Law 18~~Company.~~045,~~ ~~and~~He aswill ~~said~~be in ~~General~~charge ~~Bylaw~~of ~~No.30,~~another Iactivities ~~communicate~~within ~~the~~Errazuriz ~~following essential~~Holding, ~~fact~~as ~~regarding~~Financial ~~the society~~Director.

InAt ~~Shareholders~~the ~~Ordinary~~same ~~Meeting~~time, ~~entered~~it ~~into~~was ~~April 26~~agreed, ~~2005,~~to itdesignate ~~was established~~Mr. ~~that~~Oscar ~~the~~Opazo ~~following~~Barry ~~persons~~as ~~are~~new ~~the~~Chief ~~members~~Executive Officer of the ~~Board~~Company, ofwith ~~Directors of~~a ~~the~~well-known ~~Supermercados~~career ~~Unimarc~~in ~~S.A.~~the ~~society:~~Retail Industry.

~~Mr.~~/s/ ~~Cesar~~Francisco ~~Macias~~Javier ~~Quiroz~~Errazuriz Ovalle

~~Mr. Francisco Javier Errazuriz Ovalle~~President

~~Mr.~~SANTIAGO, ~~Patricio~~22 ~~Bosselin~~de ~~Molina~~Julio de 2005

Mr. Victor Hugo Cantillano Vergara
Mr. Elias Errazuriz Errazuriz
Mr. Ramon Mendez Cifuentes
Mr. Juan Enrique Barriga Ugarte
SANTIAGO, 27 de Abril de 2005
DA.039/05
Senor

Alejandro Ferreiro Y.

Superintendente de Valores y Seguros

Superintendencia de Valores y Seguros

Presente

Ref.: Inscripcion Registro de Valores Nro. 447

De mi consideracion:

EnDe ~~virtud~~conformidad deal ~~lo establecido en el~~ articulo noveno e inciso segundo del articulo 10 de la Ley 18.045, y de conformidad a lo senalado en la ~~Norma de Caracter General Nro~~N.C.G. numero 30, acompano la informacion de ~~ciertos~~cierto ~~hechos~~hecho que ~~a criterio de esta compania,~~ reviste el caracter de esencial o relevante ~~respecto de~~para la sociedad ~~y sus valores de oferta publica~~.

~~Saluda~~Sin otro particular, saluda atentamente a usted,

~~Eduardo~~/s/ ~~Viada~~Francisco ~~Aretxabala~~Javier Errazuriz Ovalle

~~Gerente~~Francisco ~~General~~Javier Errazuriz Ovalle

Presidente

pp. Supermercados Unimarc S.A.

Inc.: Lo citado

c.c.: Sres. Bolsa de Comercio de Santiago

Sres. Bolsa de Comercio de Valparaiso

Sres. Bolsa Electronica de Chile

Archivo General

HECHO ESENCIAL

SUPERMERCADOS UNIMARC S.A.

De conformidad aal loarticulo ~~establecido~~9 ene elinciso ~~articulo~~segundo 9del yarticulo 10 de la ley 18.045, ~~comunico~~ ely ~~siguiente~~de conformidad a lo senalado en la N.C.G. numero 30, acompano la informacion de cierto hecho ~~esencial~~que ~~respecto~~reviste el caracter de esencial o relevante para la sociedad.

EnQue ~~Junta~~en ~~General~~sesion ~~Ordinaria~~ de ~~Accionistas~~directorio de ~~Supermercados~~esta ~~Unimarc~~fecha ~~S.A., celebrada~~se ~~con~~acordo ~~fecha~~aceptar 26la derenuncia ~~Abril~~del desenor ~~2005~~Eduardo Viada Aretxabala, hacomo ~~quedado~~Gerente ~~conformado~~General, elquien ~~Directorio~~asumira ~~de la~~otras ~~compania~~funciones ~~por~~dentro ~~las~~del ~~siguientes~~Grupo ~~personas:~~Errazuriz, como Director Financiero.

~~Sr.~~Asimismo ~~Cesar~~se ~~Macias~~acordo ~~Quiroz~~designar como nuevo Gerente General de Unimarc a don Oscar Opazo Barry, de tan conocida como amplia y exitosa experiencia en la industria supermercadista.

~~Sr.~~/s/ Francisco Javier Errazuriz Ovalle

~~Sr. Patricio Bosselin Molina~~ Presidente

Sr. Victor Hugo Cantillano Vergara

Sr. Elias Errazuriz Errazuriz

Sr. Ramon Mendez Cifuentes

Sr. Juan Enrique Barriga Ugarte

Filing Compare · UNIMARC SUPERMARKETS INC