UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                   FORM 12b-25
                           SEC File Number: 000-50542
                            CUSIP Number: 448876 10 2

                           NOTIFICATION OF LATE FILING

(Check One):

[ ] Form 10-KSB  [ ]Form 20-F [ ]Form 11-K  [X] Form 10-QSB [ ]Form -SAR

  For Period Ended: September 30, 2005

  [ ] Transition Report on Form 10-K
  [ ] Transition Report on Form 20-F
  [ ] Transition Report on Form 11-K
  [ ] Transition Report on Form 10-Q
  [ ] Transition Report on Form -SAR
  For the Transition Period Ended:____________

Nothing  in this  form  shall be  construed  to imply  that the  Commission  has
verified any information contained herein.

If the notification  relates to a portion of the filing checked above,  identify
the item(s) to which the notification relates:

PART I - REGISTRATION INFORMATION

Full Name of Registrant: Hydrogen Engine Center, Inc.

Former Name if Applicable: Green Mt.  Labs, Inc.

Address of Principal Executive Office (Street and Number) : 602 East Fair Street
State and Zip Code:                                         Algona, Iowa  50511

PART II - RULES 12b-25(b) AND (c)

If the subject report could not be filed without  unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed. (Check box if appropriate)


[X]  (a) The reasons  described  in  reasonable  detail in Part III of this form
     could not be eliminated without unreasonable effort or expense;

[X]  (b) The subject annual report,  semi-annual  report,  transition  report on
     Form 10-K, Form 20-F, 11-K or Form N-SAR, or portion thereof, will be filed
     on or before the fifteenth  calendar  following the prescribed due date; or
     the subject  quarterly report or transition report on Form 10-Q, or portion
     thereof will be filed on the or before the fifth calendar day following the
     prescribed due date: and

     (c) The accountant's  statement or other exhibit required by Rule 12b-25(c)
     has been attached if applicable.

PART III - NARRATIVE

State below in reasonable  detail the reasons why Forms 10-K, 20-F, 11- K, 10-Q,
N-SAR, or the transition  report or portion  thereof,  could not be filed within
the prescribed time period.

Registrant  has been  unable to complete  its Form 10-QSB for the quarter  ended
September 30, 2005,  within the prescribed  time because of delays in completing
the financial  statements and management's  discussion and analysis that will be
part of the Form 10-QSB  report.  The registrant is a start-up  entity.  Much of
management's time has been devoted to the commencement of operations. Management
has also devoted  considerable  time to the process of  recruiting  and hiring a
Chef Financial Officer,  a process that is not yet completed.  It is anticipated
that the report will be filed within the prescribed extension period.


PART IV - OTHER INFORMATION

(1)  Name  and  telephone  number  of  person  to  contact  in  regard  to  this
     notification.

  Beverly Evans         (515)     288- 2500
  ------------------ -----------  ------------------
 (Name)              (Area Code)  (Telephone Number)

(2) Have all other  periodic  reports  required under Section 13 or 15(d) of the
Securities  Exchange Act of 1934 or Section 30 of the Investment  Company Act of
1940  during  the  preceding  12  months  or for such  shorter  period  that the
registrant  was  required to file such  report(s)  been filed?  If answer is no,
identify reports(s). Yes [X] No [ ]

(3) Is it anticipated that any significant  change in results of operations from
the  corresponding  period for the last  fiscal  year will be  reflected  by the
earnings statements to be included in the subject report or portion thereof? Yes
[X] No [ ]

If so, attach an explanation of the  anticipated  change,  both  narratively and
quantitatively, and, if appropriate, state the reasons why a reasonable estimate
of the results cannot be made.

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PAGE>

     On August 30, 2005 the Company  consummated a merger  agreement  with Green
Mt. Labs, Inc.,  ("Green Mt.") under which the Company was acquired by Green Mt.
and a newly  created  subsidiary  of  Green  Mt.  was  merged  with and into the
Company. Information relating to the merger is included in our Current Report on
Form 8-K filed with the Commission on September 6, 2005 and amended on September
7, 2005 which report is incorporated herein by reference.


                          HYDROGEN ENGINE CENTER, INC.
                  (Name of Registrant as Specified in Charter)

has  caused  this  notification  to be signed on its  behalf by the  undersigned
hereunto duly authorized.


Date: November 14, 2005 

By /S/ Theodore G.  Hollinger
 -----------------------------------
  Theodore G.  Hollinger, President

INSTRUCTION: The form may be signed by an executive officer of the registrant or
by any other duly  authorized  representative.  The name and title of the person
signing  the form  shall  be typed or  printed  beneath  the  signature.  If the
statement is signed on behalf of the registrant by an authorized  representative
(other than an executive officer), evidence of the representative's authority to
sign on behalf of the registrant shall be filed with the form.

ATTENTION

Intentional  misstatements  or omissions  of fact  constitute  Federal  Criminal
Violations (See 18 U.S.C. 1001).


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