FMR CORP
SC 13D, 1997-08-18
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SCHEDULE 13D  
  
Amendment No. 0  
Buenaventura Mining Company Incorporated  
Class B American Depositary Receipts   
Cusip # 204448104  
 
 
Cusip # 204448104  
Item 1:	Reporting Person - FMR Corp. - (Tax ID:  04-2507163)  
Item 4:	PF  
Item 6:	Commonwealth of Massachusetts  
Item 7:	None  
Item 8:	None  
Item 9:	1,256,500  
Item 10:	None  
Item 11:	1,391,414  
Item 13:	16.69%  
Item 14:	HC  
 
 
PREAMBLE  
  
	The filing of this Schedule 13D is not, and should not be  
deemed to be, an admission that such Schedule 13D is required to  
be filed.  See the discussion under Item 2.  
  
Item 1.	Security and Issuer.  
  
	This statement relates to shares of the Class B American  
Depositary Receipts, $0.01 par value (the "Shares") of  
Buenaventura Mining Company Incorporated, a Peru corporation (the  
"Company").  The principal executive offices of the Company are  
located at Carlos Villaran, 790  Urb. Santa Catalina, Lima, Peru   
R5.  
  
Item 2.	Identity and Background.  
  
	This statement is being filed by FMR Corp., a Massachusetts  
Corporation ("FMR").  A separate Schedule 13D is being filed by  
Fidelity International Limited, a Bermuda joint stock company  
incorporated for an unlimited duration by private act of the  
Bermuda legislature ("FIL").  FMR is a holding company one of  
whose principal assets is the capital stock of a wholly-owned  
subsidiary, Fidelity Management & Research Company ("Fidelity"),  
which is also a Massachusetts corporation.  Fidelity is an  
investment advisor which is registered under Section 203 of the  
Investment Advisors Act of 1940 and which provides investment  
advisory services to more than 30 investment companies which are  
registered under Section 8 of the Investment Company Act of 1940  
and serves as investment advisor to certain other funds which are  
generally offered to limited groups of investors (the "Fidelity  
Funds").  Various directly or indirectly held subsidiaries of FMR  
are also engaged in investment management, venture capital asset  
management, securities brokerage, transfer and shareholder  
servicing and real estate development.  The principal offices of  
FMR and Fidelity are located at 82 Devonshire Street, Boston,  
Massachusetts 02109.  
  
	FIL is an investment adviser which provides investment  
advisory and management services to a number of non-U.S.  
investment companies or instrument trusts (the "International  
Funds") and certain institutional investors.  Prior to June 30,  
1980, FIL was a majority-owned subsidiary of Fidelity.  On that  
date, the shares of FIL held by Fidelity were distributed, as a  
dividend, to the shareholders of FMR.  FIL currently operates as  
an entity independent of FMR and Fidelity, with certain common  
shareholders.  The International Funds and FIL's other clients,  
with the exception of Fidelity and an affiliate of Fidelity, are  
non-U.S. entities.  Various foreign-based subsidiaries of FIL are  
also engaged in investment management.  The principal office of  
FIL is located at Pembroke Hall, 42 Crow Lane, Hamilton, Bermuda.  
  
	Members of the Edward C. Johnson 3d family are the  
predominant owners of Class B shares of common stock of FMR  
representing approximately 49% of the voting power of FMR.  Mr.  
Johnson 3d owns 12.0% and Abigail Johnson owns 24.5% of the  
aggregate outstanding voting stock of FMR.  Mr. Johnson 3d is the  
Chairman of FMR.  The Johnson family group and all other Class B  
shareholders have entered into a shareholders' voting agreement  
under which all Class B shares will be voted in accordance with  
the majority vote of Class B shares.  Accordingly, through their  
ownership of voting common stock and the execution of the  
shareholders' voting agreement, members of the Johnson family may  
be deemed, under the Investment Company Act of 1940, to form a  
controlling group with respect to FMR.  The business address and  
principal occupation of Mr. Johnson 3d is set forth in Schedule A  
hereto.  
  
	In addition, a partnership controlled by Mr. Johnson and  
members of his family own shares of FIL voting stock with the  
right to cast approximately 47.22% of the total votes which may  
be cast by all holders of FIL voting stock.  Mr. Johnson 3d is  
Chairman of FMR and FIL.  FMR and FIL are separate and  
independent corporate entities.  FMR and FIL are managed  
independently and their boards of Directors are generally  
composed of different individuals.  Their investment decisions  
are made independently, and clients are different organizations.   
The business address and principal occupation of Mr. Johnson 3d  
is set forth in Schedule A hereto.  
  
	The Class B American Depositary Receipts to which this  
statement relates are owned directly by sixteen of the Fidelity  
Funds, and by Fidelity International Limited, through its  
subsidiaries and affiliates.  
  
	FMR and FIL are of the view that they are not acting as a  
"group" for purposes of Section 13(d) under the Securities  
Exchange Act of 1934 (the "1934 Act") and that they are not  
otherwise required to attribute to each other the "beneficial  
ownership" of securities "beneficially owned" by the other  
corporation within the meaning of Rule 13d-3 promulgated under  
the 1934 Act.  Therefore, they are of the view that the Class B  
American Depositary Receipts held by the other corporations need  
not be aggregated for purposes of Section 13(d).  However, FMR is  
making this filing on a voluntary basis as if all of the Class B  
American Depositary Receipts are beneficially owned by FMR and  
FIL on a joint basis.  
  
	The name, residence or business address, principal  
occupation or employment and citizenship of each of the executive  
officers and directors of FMR are set forth in Schedule A hereto.  
  
	Within the past five years, none of the persons named in  
this Item 2 or listed on Schedule A has been convicted in any  
criminal proceeding (excluding traffic violations or similar  
misdemeanors) or has been a party to any civil proceeding and as  
a result thereof was or is subject to any judgment, decree or  
final order enjoining future violations of, or prohibiting or  
mandating activities subject to federal or state securities laws  
or finding any violations with respect to such laws.  
  
Item 3.	Source and Amount of Funds or Other Consideration.  
  
	The Fidelity Funds which own or owned Class B American  
Depositary Receipts purchased in the aggregate 1,613,700 Class B  
American Depositary Receipts for cash in the amount of  
approximately $28,547,357, including brokerage commissions.  The  
Fidelity Funds used their own assets in making such purchase and  
no part of the purchase price is represented by borrowed funds.   
Proceeds from 357,200 Class B American Depositary Receipts sold  
aggregated approximately $6,836,066.  The attached Schedule B  
sets forth Class B American Depositary Receipts purchased and/or  
sold since June 13, 1997.  
  
The International Funds and accounts, which own or owned Class B  
American Depositary Receipts, purchased in the aggregate 207,414  
Class B American Depositary Receipts for cash in the amount of  
approximately $3,876,156, including brokerage commissions.  The  
International Funds and accounts used their own assets in making  
such purchase and no part of the purchase price is represented by  
borrowed funds.  Proceeds from 72,500 Class B American Depositary  
Receipts sold aggregated approximately $1,325,206.    
  
Item 4.	Purpose of Transaction.  
  
	The purpose of Fidelity in having the Fidelity Funds and the  
Accounts purchase Class B American Depositary Receipts (see Item  
5 below) is to acquire an equity interest in the Company in  
pursuit of specified investment objectives established by the  
Board of Trustees of the Fidelity Funds and by the investors in  
the Accounts.  
  
	Fidelity may continue to have the Fidelity Funds and the  
Accounts purchase Class B American Depositary Receipts subject to  
a number of factors, including, among others, the availability of  
Class B American Depositary Receipts of sale at what they  
consider to be reasonable prices and other investment  
opportunities that may be available to the Fidelity Funds and  
Accounts.  
  
	Fidelity intends to review continuously the equity position  
of the Fidelity Funds and Accounts in the Company.  Depending  
upon future evaluations of the business prospects of the Company  
and upon other developments, including, but not limited to,  
general economic and business conditions and money market and  
stock market conditions, Fidelity may determine to cease making  
additional purchases of Class B American Depositary Receipts or  
to increase or decrease the equity interest in the Company by  
acquiring additional Class B American Depositary Receipts, or by  
disposing of all or a portion of the Class B American Depositary  
Receipts.  
  
	Fidelity has no present plan or proposal which relates to or  
would result in (i) an extraordinary corporate transaction, such  
as a merger, reorganization, liquidation, or sale of transfer of  
a material amount of assets involving the Company or any of its  
subsidiaries, (ii) any change in the Company's present Board of  
Directors or management, (iii) any material changes in the  
Company's present capitalization or dividend policy or any other  
material change in the Company's business or corporate structure,  
(iv) any change in the Company's charter or by-laws, or (v) the  
Company's common stock becoming eligible for termination of its  
registration pursuant to Section 12(g)(4) of the 1934 Act.  
  
Item 5.	Interest in Securities of Issuer.  
  
	Although Item 5 assumes that FMR, Fidelity, and FIL  
beneficially own all 1,391,414 Class B American Depositary  
Receipts, reference is made to Item 2 for a disclaimer of  
beneficial ownership with respect to the securities which are  
"beneficially owned" by the other corporations.  
  
	(a)	FMR beneficially owns, through Fidelity, as investment  
advisor to the Fidelity Funds, 1,256,500 Class B American  
Depositary Receipts, or approximately 15.07% of the outstanding  
Class B American Depositary Receipts of the Company.  FIL  
beneficially owns, as investment advisor to the International  
Funds, 134,914 Class B American Depositary Receipts, or  
approximately 1.62% of the outstanding Class B American  
Depositary Receipts of the Company.  Neither FMR, Fidelity, nor  
any of its affiliates nor, to the best knowledge of FMR, any of  
the persons named in Schedule A hereto, beneficially owns any  
other Class B American Depositary Receipts.  The combined  
holdings of FMR, Fidelity, and FIL are 1,391,414 Class B American  
Depositary Receipts, or approximately 16.69% of the outstanding  
Class B American Depositary Receipts of the Company.  
  
	(b)	FMR, through is control of Fidelity, investment advisor  
to the Fidelity Funds, and the Funds each has sole power to  
dispose of the Class B American Depositary Receipts.  Neither FMR  
nor Mr. Johnson has the sole power to vote or direct the voting  
of the 1,256,500 Class B American Depositary Receipts owned  
directly by the Fidelity Funds, which power resides with the  
Funds' Boards of Trustees.  Fidelity carries out the voting of  
the Class B American Depositary Receipts under written guidelines  
established by the Funds' Board of Trustees.    
  
	(c)	Except as set forth in Schedule B, neither FMR, or any  
of its affiliates, nor, to the best knowledge of FMR, any of the  
persons named in Schedule A hereto has effected any transaction  
in Class B American Depositary Receipts during the past sixty  
(60) days.  
  
Item 6.	Contract, Arrangements, Understandings or Relationships  
With Respect to Securities of the Issuer.  
  
	Neither FMR nor any of its affiliates nor, to the best  
knowledge of FMR, any of the persons named in Schedule A hereto  
has any joint venture, finder's fee, or other contract or  
arrangement with any person with respect to any securities of the  
Company.  
  
	The Funds and Accounts may from time to time own debt  
securities issued by the Company or its direct or indirect  
subsidiaries, and may from time to time purchase and/or sell such  
debt securities.  
 
 
  
Item 7.	Material to be Filed as Exhibits.  
  
	Not Applicable.  
  
	This statement speaks as of its date, and no inference  
should be drawn that no change has occurred in the facts set  
forth herein after the date hereof.  
  
Signature  
  
	After reasonable inquiry and to the best of my knowledge and  
belief, I certify that the information set forth in this  
statement is true, complete and correct.  
  
						FMR Corp.  
  
  
  
DATE:	August 18, 1997	By:	/s/Frank  
V. Knox			  
	Frank V. Knox  
	Compliance Officer - FMR Corp.  
	Under P/O/A dated 8-11-97  
	by Arthur S. Loring  
  
  
 
 
SCHEDULE A  
  
	The name and present principal occupation or employment of  
each executive officer and director of FMR Corp. are set forth  
below.  The business address of each person is 82 Devonshire  
Street, Boston, Massachusetts 02109, and the address of the  
corporation or organization in which such employment is conducted  
is the same as his business address.  All of the persons listed  
below are U.S. citizens.  
  
POSITION WITH  
									PRINCIPAL  
NAME	FMR CORP.	OCCUPATION  
  
Edward C. Johnson 3d	President, 
	Chairman of the  
Director, CEO	Board and CEO, FMR  
Corp.  
Chairman &  
Mng. Director  
  
J. Gary Burkhead	Director and Vice Chairman	President,  
Fidelity Investments  
		Institutional  
Services   
		Company, Inc.  
  
James C. Curvey	Director, Vice Chairman,	Chief Operating  
Officer, FMR  
	Chief Operating Officer  
  
William L. Byrnes	Director & Mng.	Vice Chairman, FIL  
Director  
  
Abigail P. Johnson	Director	Associate Director  
and Senior Vice 		President - Fidelity  
Management & 		Research Company  
  
George A. Vanderheiden	Director	Senior  
Vice President,  
		Fidelity Management  
& Research 			Company  
  
David C. Weinstein	Sr. Vice President	Sr. Vice President  
Administration	Administration, FMR  
Corp.  
  
  
Mark A. Peterson	Executive Vice President	President - Fidelity  
Investments 			Technology &  
Processing Group  
  
Gerald M. Lieberman	Sr. Vice Pres. - 	Sr. Vice Pres. -  
Chief Financial	Chief Financial   
Officer	Officer, FMR Corp.  
  
 
 
SCHEDULE B  
  
  
Buenaventura Mining Company Incorporated  
  
Four Fidelity Fund(s) purchased Class B American Depositary  
Receipts since June 13, 1997 at the dates and at the prices set  
forth below.  The transactions were made for cash in open market  
transactions or with other investment companies with the same or  
an affiliated investment advisor.  
  
	DATE	SHARES	PRICE  
	06/18/97	100	$22.13  
	07/18/97	14,900	18.25  
	07/21/97	100,000	18.60  
	07/23/97	300	19.00  
	07/24/97	88,100	18.50  
	08/08/97	100	18.25  
  
 
 
SCHEDULE B  
  
  
Buenaventura Mining Company Incorporated  
  
One Fidelity Fund(s) sold Class B American Depositary Receipts  
since June 13, 1997 at the dates and at the prices set forth  
below.  The transactions were made for cash in open market  
transactions or with other investment companies with the same or  
an affiliated investment advisor.  
  
	DATE	SHARES	PRICE  
	06/24/97	8,500	$20.13  
	06/25/97	38,400	20.13  
	06/26/97	16,800	20.13  
	07/09/97	8,900	19.42  
	07/10/97	19,100	19.22  
	07/11/97	10,000	19.13  
	07/15/97	62,000	19.00  
	07/21/97	50,000	18.50  
	07/23/97	11,900	19.00  
	07/24/97	88,100	18.50  
 


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