May 12, 1993


Mr. Daniel S. Ma
A-2 Hayden Court
25-27 South Bay Close
Hong Kong

Dear Daniel:

It is with great  pleasure  that I confirm our  discussions,  and the  following
represents  our formal  offer to you for the position of General  Manager,  Asia
Pacific.

Base Salary

Your base salary for this position  will be $110,000 USD, plus a  cost-of-living
(COL) adjustment of 10%. Total remuneration will be $121,000.

Incentive Compensation

Your  incentive  compensation  target  award will be 45% of your base  salary or
$49,500.  Your target award  weighting will be 35%  Corporate,  35% Asia Pacific
Operations,  and 30% personal goals. Your guarantee for 1993 will be $15,000. An
explanation of the plan is attached.

Automobile

You are  authorized  to  purchase an  automobile  similar in class to the Toyota
Camry with a target price of $30,000.  The company will  reimburse all operating
expenses.

Housing

The company will pay for all rent,  utilities,  and  maintenance  fees generated
from your housing.  It is understood  that you will  contribute 12% of your base
pay annually reflecting your contribution towards the housing expense.


                               Exhibit 10(l) Page
                                        1





Page 2

Mr. Daniel Ma
May 12, 1993

PPG Sign-On Bonus

Quaker  agrees to  reimburse  you up to a limit of $30,000 for any  repayment of
sign-up bonus to PPG subsequent to negotiations. Payment of this amount would be
generated  in response to a  presentation  of a formal PPG  document  requesting
repayment of the sign-up bonus or a portion thereof.

American Club

The company agrees to compensate  annual dues and appropriate  business expenses
for membership in the Hong  Kong/American  Club. Any utilization of the club for
personal or private use will be at your expense.

Medical Assistance, Life and Disability Insurance

Under this Agreement,  you will participate in the Quaker  Flex-Benefit  Plan to
include medical, dental,  disability,  and life insurance. It is understood that
under the  Flex-Benefit  Plan,  there  will be an  employee  co-pay  requirement
depending upon benefits selected.

Home Leave

One round trip per year for you and your wife will be provided  tourist class to
the United States.

Vacation

Four weeks annually.

Tax Equalization

You will be responsible for all U.S. taxes with Quaker reimbursing
all non-U.S. tax liability, if any.  Tax preparation will be
provided for by Price Waterhouse.

Repatriation

At the end of the assignment or retirement,  Quaker agrees to repatriate you and
your  family to the United  States.  Should you elect to leave  Quaker  prior to
either of these  events,  Quaker  will be  absolved  of any  responsibility  for
repatriation payments.


                               Exhibit 10(l) Page
                                        2





Page 3

Mr. Daniel Ma
May 12, 1993

This job  offer is  contingent  upon your  taking a  company-paid  physical  and
passing (negative result) a company-paid  substance abuse  (drug/alcohol)  test.
Please contact Cliff Montgomery (215/832-4140) to make arrangements.

This offer is being held exclusively for you until May 21, 1993.  Please sign on
the space indicated below and return to me.

If you have any  questions,  please do not  hesitate  to call  Cliff or me. I am
looking  forward  to  hearing  from  you soon - at  which  time we will  discuss
potential  starting dates and travel  arrangements for your participation in our
Global Meeting, June 26-30, at the Sagamore on Lake George, New York.

Sincerely yours,                            Accepted:




S. W. W. Lubsen                             ------------------------------------
                                            Daniel S. Ma


/np

cc:      K. K. Lam                         -------------------------------------
         C. E. Montgomery                   Date


                               Exhibit 10(l) Page
                                        3