<PAGE>   1

                                                                  Exhibit 10.52


                              EMPLOYMENT AGREEMENT


March 4, 1998

Mr. Jorg R. Huber
14020 Old Harbor Lane
Suite #206
Marina Del Rey, CA 90292

Dear Mr. Huber:

The American Materials & Technologies Corporation (AMT) is pleased to offer you
employment at President and Chief Operating officer of its subsidiary, Culver
City Composites Corporation. You will report to Paul W. Pendorf, Chairman &
Chief Executive Officer.

The job offer includes the following:

-       An annual salary of $145,000 to be paid semi-monthly, which will be
        reviewed at December 31, 1998.

-       Eligible for an annual bonus based upon EBITDA of Culver City Composites
        Corporation for calendar year 1998. If EBITDA is at least $2.9 million,
        you will be paid a bonus of 30% of your annual salary. The bonus will be
        increased pro-rata for EBITDA in excess of $2.9 million. At EBITDA of
        $4.0 million, the bonus will be 45% of salary and capped at that point.
        A similar arrangement will be in effect for the following years on
        EBITDA targets to be agreed upon.

-       Stock options for 60,000 shares of AMT common stock at an exercise price
        of $2.00 per share. These options will have a term of ten years and vest
        in equal installments over three years from the date of grant.

-       Four weeks paid vacation per year (three weeks in 1998).

-       An automobile allowance of $550 per month plus insurance, gas and
        repairs associated with business.

-       Standard employee benefit package, including medical, dental, long-term
        disability, life insurance and 401(k) savings plan.

-       In the event of a change in control of AMT, you will be entitled to
        severance equal to two years' salary, to be paid within two weeks
        following termination. If terminated under your








                                       42

<PAGE>   2

        employment contract without change of ownership other than for cause
        during the first year of employment, you will be entitled to one year's
        salary. This will increase by one month for each month of the second
        year of employment to a maximum of two years. Severance will be paid
        monthly and will terminate upon your accepting new employment. In the
        event of a change in control, your stock options will be 100% vested.

-       If AMT is beneficiary under a key-man life insurance policy, you agree
        that Mrs. Huber will waive the marital right.

-       Relocation expenses of $15,000 when your household goods are relocated.

This offer is contingent upon your passing a pre-employment physical and drug
screen and providing employment eligibility verification pursuant to the
Immigration and Control Act of 1986.

This concludes AMT's offer of employment and supersedes any prior oral or
written agreements.

The American Materials & Technologies Corporation


By: /s/ Paul W. Pendorf
   -----------------------------
        Paul W. Pendorf
        President



I accept the offer of employment from AMT, effective March 16, 1998.

/s/  Jorg R. Huber                                 March 4, 1998
--------------------------------










                                       43
<PAGE>   3
                                                                   Exhibit 10.53


           PRODUCT DEVELOPMENT, MANUFACTURING AND MARKETING AGREEMENT

                                 October 1, 1997

        The parties to this agreement, being Schappe Techniques Sarl
("SCHAPPE"), a French company, with location at B.P. 5, 01800 Charnoz, France;
AIK Advanced Composites GmbH ("AIK"), a German company with location at
Otto-Hahn Strasse 5, Industriepark Kassel-Waldau, D-34123 Kassel, Germany; and
Culver City Composites Corporation ("Culver City Composites"), a Delaware U.S.A.
corporation with offices at 5915 Rodeo Road, Los Angeles, California, U.S.A.,
desiring to be bound herein do hereby agree as follows:

        WHEREAS, Schappe has long established technical expertise going back to
the late 19th century, starting with the spinning of silk yarns and progressing
to utilization of this technology in the processing of newer synthetic
materials, and

        WHEREAS, Schappe has a factory in St.-Die France capable of producing
approximately 300 metric tons per year of processed carbon fiber (24 hours per
day/five days per week) and currently is producing approximately 50 MT per year,
and

        WHEREAS, Schappe has patented technology, both in Europe and the U.S.,
covering the conversion of high tow continuous fiber to low tow discontinuous
fiber equivalent (Exhibit A).

        WHEREAS, Culver City Composites has a prepregging tradition in the
aerospace industry going back to the World War II era, and

        WHEREAS, said tradition includes the manufacture of aircraft interior
prepregs with superior resin properties, and

        WHEREAS, Culver City Composites is one of the two leading suppliers of
prepreg for aerospace interior applications used by the Boeing Company and
Airbus Industries, and

        WHEREAS, Culver City Composites' initial development work has indicated
that the Schappe process carbon and other fibers can be successfully woven and
prepregged and laminated into the cured forms having initially equivalent
physical and mechanical properties compared to conventional interior composites
materials, and

        WHEREAS Culver City Composites is currently engaged in large volume
developmental businesses with focus including automotive, sporting goods
(Exhibit B), and others, and

        WHEREAS, AIK is a joint venture that will be owned by AIK Industries
GmbH and Culver City Composites, formed to manufacture and sell prepreg in
Europe, and








                                       44
<PAGE>   4


        WHEREAS, the parties believe that prepreg sold to the aerospace industry
as well as other applications (Exhibit B) has very superior economics compared
to current conventional materials, and

        WHEREAS, the parties desire to commercially develop said economic
potential of Modlite(R) products and technology via a cooperative world wide
effort,

        NOW, THEREFORE the parties agree as follows:

                               DEVELOPMENTAL PHASE

1.      The parties agree to continue to develop fiber, uni-directional tape
        (UDT) woven fabric and prepregging techniques to the point where
        economics can be clearly defined, and to where qualification quantities
        can be supplied to Airbus and Boeing and elsewhere as shown in Exhibit
        B. Unless otherwise agreed, Schappe will absorb all costs associated
        with delivery of Modlite(R) yarn to Culver City Composites, and Culver
        City Composites and AIK will absorb all costs associated with weaving
        and prepregging.

2.      Culver City Composites will develop a laminate data package to provide
        to Boeing and Airbus and later, others as developments dictate (See
        Exhibit B). The Boeing Company will be offered a five-year supply
        agreement based on firm quotes from Courtaulds, Fortafil, Schappe, TPI
        and Culver City Composites. Airbus will be offered a five-year supply
        agreement based on firm quotes from Courtaulds, Fortafil, Schappe, a
        European weaver (to be selected), and AIK.

3.      During the period of the development phase, Schappe, Culver City
        Composites and AIK agree to a formal technical exchange meeting three
        times a year, one each in France, Germany, and California. The host of
        the meeting will prepare an agenda 30 days prior to each meeting for
        review and comment by the other two parties.

                                SUPPLY AGREEMENT

1.      Schappe will supply its Modlite(R) fiber yarn (See Exhibit C), based
        upon the patented technology, to Culver City Composites and to AIK on an
        exclusive world wide basis for an initial period of five years. (See
        sole exception Exhibit A Item E).

2.      Culver City Composites and AIK agree to exclusively use Schappe
        Modlite(R) fiber in the development of the market for discontinuous
        carbon fiber aircraft interiors and other applications as shown in
        Exhibit B as appropriate.

3.      For commercial quantities including the qualification process
        completion, Schappe, Culver City Composites and AIK will share equally
        in the profits of the sales to Boeing and Airbus, after consideration is
        given to their out of pocket cost (incremental "cash cost") and later
        other customers (See Exhibit B).





                                       45
<PAGE>   5

                               MARKETING AGREEMENT

        Culver City Composites and AIK agree that AIK will market the prepreg in
the European territory and Culver City Composites will market outside of Europe,
using a coordinated marketing strategy to develop initially the market for
aircraft interiors, followed by the market for other transportation interiors.
The parties agree to exclusively promote the material using the trade mark
"Modlite(R)" and others (See Exhibit B) in all communications.

                                 ADMINISTRATION

        There will be an Executive Council designated by Schappe, Culver City
Composites and AIK. One representative from each company will be designated and
this administrative council will be responsible for implementing the tenets of
this agreement. All decisions by the Council are to be unanimous. The council is
to meet at least twice a year -- once in the U.S. and once in Europe.

                 EXCLUSIVE MANUFACTURING AND TRADEMARK LICENSES

        If, as the American market develops, it is determined by the executive
council that American yarn manufacture is desirable, the council will determine
the method by which said plant will be financed and capitalized. It is agreed
that a minimum of 200 metric tons per year production rate must be maintained at
Schappe once that production level is achieved. Schappe, Culver City Composites,
and AIK agree for the term of this agreement not to enter into any negotiations
with any other parties regarding yarn manufacture or prepregging of the
Modlite(R) products.

        It is the intention of the parties to systematically, over a 5-10 year
period, develop and introduce a family of products incorporating the Modlite(R)
Schappe yarns as starting material. Culver City Composites or AIK shall have the
lead responsibility within the executive council for market development and
identification of market place opportunities. Schappe shall have total access to
the market information as developed.

                                      TERM

        This agreement shall be for an initial term of five years which shall
roll over for two three-year additional terms, absent a ninety-day termination
notice of intent by any of the partners.

                                 CONFIDENTIALITY

        The parties agree to enter into full confidentiality agreements covering
all aspects of this agreement.




                                       46

<PAGE>   6

                                           AGREED:


AIK Advanced Composites GmbH               /s/ Han J. Prykop
                                           --------------------------------
                                               Hans J. Prykop
                                               Geschaeftsfuehrer

Culver City Composites Corp.               /s/ P. W. Pendorf
                                           --------------------------------
                                               P. W. Pendorf
                                               President

Schappe Techniques Sarl                    /s/ Jean Guevel
                                           --------------------------------
                                               Jean Guevel
                                               Managing Director






                                       47