Exhibit 1.1
INVESCO UNIT TRUSTS, SERIES 1843
TRUST AGREEMENT
Dated: February 1, 2018
This Trust Agreement among Invesco Capital Markets, Inc. as Depositor, The
Bank of New York Mellon, as Trustee, and Invesco Investment Advisers LLC, as
Supervisor, sets forth certain provisions in full and incorporates other
provisions by reference to the document entitled "Standard Terms and Conditions
of Trust For Invesco Unit Trusts, Effective for Unit Investment Trusts
Established On and After December 6, 2012 (Including Invesco Unit Trusts, Series
1281 and Subsequent Series)" (the "Standard Terms and Conditions of Trust") and
such provisions as are set forth in full and such provisions as are incorporated
by reference constitute a single instrument. All references herein to Articles
and Sections are to Articles and Sections of the Standard Terms and Conditions
of Trust.
WITNESSETH THAT:
In consideration of the premises and of the mutual agreements herein
contained, the Depositor, Trustee and Supervisor agree as follows:
PART I
STANDARD TERMS AND CONDITIONS OF TRUST
Subject to the provisions of Part II hereof, all the provisions contained in
the Standard Terms and Conditions of Trust are herein incorporated by reference
in their entirety and shall be deemed to be a part of this instrument as fully
and to the same extent as though said provisions had been set forth in full in
this instrument.
PART II
SPECIAL TERMS AND CONDITIONS OF TRUST
The following special terms and conditions are hereby agreed to:
1. The Securities listed in the Schedule hereto have been deposited in trust
under this Trust Agreement.
2. The fractional undivided interest in and ownership of the Trust
represented by each Unit thereof referred to in Section 1.01(51) is initially an
amount the numerator of which is one and the denominator of which is the amount
set forth under "Units outstanding" for the Trust in the "Statement of
Condition" in the Prospectus.
3. The terms "Capital Account Distribution Date" and "Income Account
Distribution Date" shall mean the "Distribution Dates" set forth under
"Essential Information" in the Prospectus.
4. The terms "Capital Account Record Date" and "Income Account Record Date"
shall mean the "Record Dates" set forth under "Essential Information" in the
Prospectus.
5. The term "Deferred Sales Charge Payment Dates" shall mean the tenth day of
each month in the deferred sales charge accrual period as set forth under the
applicable "Fee Table" in the Prospectus.
6. Section 3.05(b)(i) of the Standard Terms and Conditions of Trust shall be
replaced in its entirety with the following:
"On each Distribution Date, the Trustee shall distribute to each Unitholder
of record at the close of business on the preceding Record Date an amount per
Unit equal to such Unitholder's Income Distribution (as defined below) computed
as of the close of business on the Record Date immediately preceding such
Distribution Date. On each Distribution Date, the Trustee shall distribute to
each Unitholder of record at the close of business on the preceding Record Date
such Unitholder's pro rata share of the balance of the Capital Account (except
for moneys on deposit therein required to purchase Contract Securities). The
Trust may provide the following distribution elections: (1) distributions to be
made to the address of the Unitholder as it appears on the registration books of
the Trustee or (2) distributions to be made to the designated agent for any
reinvestment program when, as and if available to the Unitholder through the
Depositor. If no election is offered by the Depositor or if no election is
specified by the Unitholder at the time of purchase of any Unit, distribution of
principal and income and capital gains, if any, shall be distributed as provided
in (1) above. Any election other than a deemed election as described in the
preceding sentence shall be by written notice to, and in form satisfactory to,
the Trustee. Once a distribution election has been chosen by the Unitholder,
such election shall remain in effect until changed by the Unitholder. Such
change of election may be made by notification thereof to the Trustee at any
time in form satisfactory to the Trustee. A transferee of any Unit may make his
distribution election in the manner as set forth above. The Trustee shall be
entitled to receive in writing a notification from the Unitholder as to his or
her change of address."
7. Section 3.05(b)(ii) shall be replaced in its entirety by the following:
"(ii) For purposes of this Section 3.05, the Unitholder's "Income
Distribution" shall be equal to such Unitholder's pro rata share of the balance
in the Income Account calculated on the basis of one-twelfth of the estimated
annual income to the Trust for the ensuing twelve months computed as of the
close of business on the Income Account Record Date immediately preceding such
Income Distribution (or portion or multiple thereof for the first Income
Distribution), after deduction of (1) the fees and expenses then deductible
pursuant to Section 3.05(a) and (2) the Trustee's estimate of other expenses
properly chargeable to the Income Account pursuant to this Indenture which have
accrued, as of such Income Account Record Date or are otherwise properly
attributable to the period to which such Income Distribution relates.
In the event that the amount on deposit in the Income Account is not
sufficient for the payment of the amount intended to be distributed to
Unitholders on the basis of the aforesaid computation, the Trustee is authorized
to advance its own funds and cause to be deposited in and credited to the Income
Account such amounts as may be required to permit payment of the related
distribution to be made as aforesaid and shall be entitled to be reimbursed,
without interest, out of income payments received by the Trust subsequent to the
date of such advance. Any such advance shall be reflected in the Income Account
until repaid."
8. The Depositor's annual compensation rate described in Section 3.13 and the
Supervisor's annual compensation rate described in Section 4.01 collectively
shall be that amount set forth under "Supervisory, bookkeeping and
administrative fees" in the "Fee Table" in the Prospectus.
9. The Trustee's annual compensation rate described in Section 7.04 shall be
that amount set forth under "Trustee's fee and operating expenses" in the "Fee
Table" in the Prospectus.
10. Notwithstanding anything to the contrary in the Standard Terms and
Conditions of Trust, if the Trustee sells, redeems or otherwise liquidates Fund
Shares pursuant to Section 6.02 to satisfy Unit redemptions or pursuant to
Section 7.04 to pay Trust expenses, the Trustee shall do so, as nearly as
practicable, on a pro rata basis among all Fund Shares held by a Trust.
IN WITNESS WHEREOF, the undersigned have caused this Trust Agreement to be
executed; all as of the day, month and year first above written.
INVESCO CAPITAL MARKETS, INC.
By: /s/ XXXX X. XXXXXXX
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Vice President
INVESCO INVESTMENT ADVISERS LLC
By: /s/ XXXX X. XXXXXXX
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Vice President and Executive Director
THE BANK OF NEW YORK MELLON
By: /s/ XXXXXX YEDREYESKI
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Vice President
SCHEDULE A TO TRUST AGREEMENT
SECURITIES INITIALLY DEPOSITED
IN
INVESCO UNIT TRUSTS, SERIES 1843
[Incorporated herein by this reference and made a part hereof is the "Portfolio"
schedule as set forth in the Prospectus.]
