EXHIBIT 99.1
                                                                    ------------

             WESCO INTERNATIONAL ANNOUNCES STREAMLINING INITIATIVES,
                  NON-RECURRING CHARGES, FOURTH QUARTER OUTLOOK
                              AND 2001 EXPECTATIONS

              CONTACT: STEPHEN A. VAN OSS, CHIEF FINANCIAL OFFICER
          WESCO INTERNATIONAL, INC. (412) 454-2271, FAX: (412) 454-2477
                            HTTP://WWW.WESCODIST.COM


Pittsburgh,  PA, January 30, 2001 -- WESCO  International,  Inc.  [NYSE:WCC],  a
leading  provider  of  MRO  products,   construction  materials,   and  advanced
integrated supply procurement outsourcing services,  announced today initiatives
to  streamline  operations,  non-recurring  charges,  its outlook for the fourth
quarter of 2000 and expectations for the year 2001.



STREAMLINING INITIATIVES AND NON-RECURRING CHARGES
- --------------------------------------------------
The Company reported today that it expects to incur net-after-tax  restructuring
and other one-time  special  charges of $15.0 to $16.0 million or $0.33 to $0.35
per share.

According to Stephen A. Van Oss, WESCO's Chief Financial  Officer,  "The special
charges we reported  today can be grouped  into three broad  categories.  First,
there is the cost of  closing  or  consolidating  fourteen  unprofitable  branch
operations and certain  administrative  support  offices and the write-off of an
equity  investment,  totaling  approximately  $7.0 million  net-after tax. These
actions, plus a consolidation of several data center operations, are expected to
generate  $3.0 to $3.5  million of annual  pre-tax  cost  savings.  Second,  the
tightening credit markets and increased bankruptcy filings,  most notably in the
steel industry,  required an after-tax charge of  approximately  $5.0 million to
reflect  bad debt  write-offs  for  accounts  receivable.  The  charges  against
accounts  receivable  represent  approximately  1%  of  the  Company's  accounts
receivable  that total $650  million.  Lastly,  the Company  initiated a program
during the fourth  quarter to more closely  align its  inventories  with current
market conditions  resulting in inventory returns and write downs amounting to a
$3.0  million  after-tax  charge.   With  the  exception  of  the  $7.0  million
restructuring  charge for closing  operations  and the  write-off  of the equity
investment,  all other charges will flow through the income statement  adversely
affecting  margins and  expenses,  thus making  comparisons  with prior  periods
difficult."





Roy W.  Haley,  WESCO's  Chairman  and CEO,  said,  "The  restructuring  program
reflects  positive actions taken by management to improve our cost structure and
lower administrative costs. We've been able to maintain our sales momentum while
closing  or  consolidating  a number of  locations.  Staffing  levels  have been
adjusted, and productivity has clearly been increased.
Sales per employee now exceed $640 thousand, 9% above last year."

Commenting on the Company's  accounts  receivable  position,  Van Oss said, "The
receivable  situation  is an  anomaly.  WESCO has had a good  collections  track
record,  with bad debt expense  typically  running less than 0.15% of sales. The
charges  taken this year  reflect an expense  rate of 0.3%,  still a low rate by
most standards.  Nevertheless, we're adding emphasis and resources to our credit
and collection  activities.  In addition, we are adjusting credit limits in line
with industry exposure, and we're closely monitoring payment trends.



OUTLOOK FOR THE FOURTH QUARTER
- ------------------------------
Activity levels during the fourth quarter met the Company's  expectations,  with
sales of  approximately  $990 million and year-end  backlog  standing 14% higher
than last year-end. Comparable branch sales growth for the quarter, adjusted for
equivalent  workdays,  was  in  the  range  of  10  to  11%.  Margin  was  below
expectations,  however,  as the Company incurred a fourth quarter shift in sales
mix to lower gross margin direct ship project and integrated supply sales.

As a result of the  restructuring  and special one-time charges described above,
the Company  expects to report a net loss for the fourth quarter in the range of
$3.0 to $4.0 million or $0.06 to $0.08 per share.  Excluding  these  charges and
taking into  consideration  a change in effective tax rate for the quarter,  net
income for the quarter would have been in the range of $10.0 to $11.0 million or
$0.21 to $0.23 per  share.  For the full  year,  the  Company  expects to report
earnings,  including the  restructuring  and one-time  charges,  in the range of
$33.0 to $34.0 million or $0.67 to $0.71 per share. Excluding these charges, net
income for the year  would  have been in the range of $45.0 to $46.0  million or
$0.94 to $0.98 per share.  WESCO's  reported  fourth  quarter and  year-end  net
income for 1999 was $6.9  million or $0.14 per share and $35.1  million or $0.75
per share respectively.



2001 EXPECTATIONS
- -----------------
"The branch closures and  consolidations  have reduced our exposure to potential
losses in  weaker,  non-strategic  markets.  We are  continuing  our  program of
productivity  improvement and cost  containment,  which began  approximately one
year ago. In addition,  advances in our information system  capabilities made it
possible for us to consolidate certain administrative and procurement functions.
I expect to see systematic  improvement  in our gross profit  margins  primarily
through  the use of new  pricing  systems  and  improved  controls  over  margin
exceptions.  We will have the  majority of our  branches on these new systems by
the end of the first quarter," Haley commented.


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"As we look forward to 2001, we will face the  challenge of a weakening  economy
and tough  quarter over quarter  comparisons  to very strong sales levels during
the first half of 2000.  Based on new business  that has been  developed and the
information we have today,  we are optimistic for continued  top-line  growth in
line  with  internal  historical  growth  rates  in the  range  of 6 to 8%.  Our
integrated  supply and  national  accounts  sales  programs  have  continued  to
generate excellent growth and new customer  commitments,  which more than offset
declines in certain weaker market segments.  We continue to invest in and expand
our marketing and sales  initiatives in these important  areas.  Notwithstanding
the   demise  of   numerous   "dot.com"   firms  that  have   targeted   mro  or
construction-oriented  business,  we are  increasingly  confident  in the future
potential of our e-Commerce initiatives.  Continued emphasis on margin expansion
and operating cost  containment  programs will improve  earnings pull through to
the bottom  line," stated Van Oss. "At this time,  we are  comfortable  with the
analyst  projections  for the year with a consensus  estimate of $1.18 per share
and  intend to update  the  investment  community  on a  quarterly  basis as our
visibility on sales and earnings improve throughout the year."



TELECONFERENCE
- --------------
Wesco will conduct a  teleconference  to discuss  this news  release  Wednesday,
January 31, 2001, at 11:00 a.m.  E.S.T.  The  conference  call will be broadcast
live     over     the      internet      and     can     be      accessed     at
http://www.shareholder.com/wesco/medialist.com  or from the company's  home page
at  http://www.wescodist.com.  The  conference  call  will be  archived  on this
internet site for 14 days.


                                      # # #





WESCO  International,  Inc. [NYSE: WCC] is a publicly traded Fortune 500 holding
company,  headquartered  in Pittsburgh,  Pennsylvania,  whose primary  operating
entity is WESCO  Distribution,  Inc. WESCO Distribution is a leading distributor
of MRO (maintenance,  repair, and operating) products,  construction  materials,
and advanced  integrated supply procurement  outsourcing  services.  It operates
over 340 full service branches throughout North America. WESCO's 5,800 employees
were  responsible  for generating  and  supporting  1999 annual product sales of
approximately $3.4 billion.  These sales represent more than 100,000 of the most
recognized and commonly



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used industrial and construction products. Major markets served by WESCO include
commercial  and  industrial   construction,   industrial  process  and  discrete
manufacturers,  large industrial OEMs (original equipment  manufacturers),  data
communications and electrical utilities.


                                      # # #


The matters  discussed  herein may contain  forward-looking  statements that are
subject to certain risks and  uncertainties  that could cause actual  results to
differ materially from expectations. Certain of these risks are set forth in the
Company's  Annual  Report on Form 10-K for the fiscal  year ended  December  31,
1999, as well as the  Company's  other  reports  filed with the  Securities  and
Exchange Commission. WESCO's Internet address is: HTTP://WWW.WESCODIST.COM.













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