Foreign-owned companies are discriminated vis-à-vis citizen-owned ones in public procurement.
"3. In this Act, unless the context otherwise requires -
"broad-based economic empowerment" means the economic empowerment of -
(a) targeted citizens; (b) citizens empowerment companies (c) citizen influenced companies; and (d) citizen owned companies; [...]
"citizen" means a citizen of Zambia;
"Citizen empowerment company" means a company where twenty-five to fifty percent of its equity is owned by citizens;
"citizen influenced company" means a company where five to twenty-five percent of its equity is owned by citizens and in which citizens have significant control of the management of the company;
"citizen owned company" means a company where at least fifty point one percent of it equity is owned by citizens and in which citizens and in which citizens have significant control of the management of the company; [...]
"targeted citizens" means a citizen who is or has been marginalized or disadvantaged and whose access to economic resources and development capacity has been constrained due to various factors including race, sex, educational background, status and disability;
[...]
19. (1) Notwithstanding the Zambia National Tender Board Act or any other law relating to procurement of public services and goods, the commission shall, in consultation with the Tender Board, determine the thresholds to be prescribed by the Minister responsible for finance for the participation of targeted citizens, citizen empowered companies, citizen influenced companies and citizen owned companies in tender for the procurement of services and goods for any State institution at national, provincial and district levels.
(2) The Commission shall develop, in consultation with the Tender Board, policy guidelines to ensure that targeted citizens and companies specified in subsection (1) are given preferential treatment in accessing and being awarded tenders for procurement of services and goods for any State institution.  [...]" (Citizens Economic Empowerment Act, 2006 (No. 9 of 2006)).
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"3. Application of preferential procurement system
A State institution shall apply a preferential procurement system in accordance with the Act and these Regulations.
4. Preferential treatment
A State institution may, in evaluating a bid, adjust the bid price in order to facilitate preferential evaluation of a bid as follows:
(a)    for a citizen-influenced company, by four percent;
(b)    for a citizen-empowered company, by eight percent;
(c)    for a citizen-owned company, by 12 percent; and
(d)    for domestically manufactured goods by a citizen-influenced company, citizen-empowered company and citizen-owned company, by 15 per cent.
5. Reservation schemes
(1) The Commissioner and the Authority shall reserve a public procurement for a citizen-influenced company, citizen-empowered company or citizen-owned company with estimated values as follows–
(a) with respect to goods, public procurement of goods not exceeding 3 billion kwacha (K3, 000,000,000.00); and
(b) with respect to works– (i) building construction works not exceeding 20 billion kwacha (K20, 000,000,000.00); and (ii) civil and road works not exceeding 30 billion kwacha (K30, 000,000,000.00).
(2) A citizen-influenced company, citizen-empowered company or a citizen-owned company participating in a public procurement that exceed the estimated values provided for in sub-regulation (1) shall not be eligible for reservation as specified in sub-regulation (1).
6. Non-consulting services
A procurement of a non-consulting service below the value of one billion kwacha (K1, 000,000,000.00) shall, unless it is not possible to acquire the services of a citizen-influenced company, citizen-empowerment company or citizen-owned company, be exclusively reserved for a citizen-influenced company, citizen empowerment company or citizen-owned company. [...]" (Citizens Economic Empowerment (Preferential Procurement) Regulations, 2011)
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"2. In this Act, unless the context otherwise requires— [...]
"citizen bidder or citizen supplier" means, in the case of — (a) an individual, a bidder or supplier who is a citizen; (b) a firm or company, whether corporate or unincorporate, a firm or company wholly owned by a citizen; and (c) a body of persons wholly comprising of citizens;[...]
"foreign bidder or supplier" means a non-citizen bidder or supplier who is not registered to undertake business activities in the Republic in accordance with the relevant law; [...]
"local bidder or supplier" means a non-citizen bidder or supplier who is registered to undertake business activities in the Republic in accordance with the relevant written law;
[...]
Approval required for international procurement agreements
4. (1) A procuring entity shall, before entering into an international procurement agreement, obtain the approval of the Authority and the Treasury and once the approval is given, seek the advice of the Attorney-General.
(2) A procurement agreement under subsection (1) purportedly entered into without the approval of the Authority and the Treasury, and the advice of the Attorney-General, is void. 
(3) The financier of a commercial or concessional loan of an international procurement agreement under subsection (1) shall ensure that the contractor partners with a citizen bidder identified through a competitive process.
[...]
National and international bidding
39. (1) Subject to subsection (2), a procuring entity shall use open national bidding for procurement of goods, works and non—consulting services.
(2) Participation in open national bidding shall be limited to citizen bidders and in the absence of successful citizen bids to local bidders. 
(3) A local bidder awarded a procurement contract in accordance with subsection (2), shall partner with a citizen supplier.
(4) A procuring entity shall use open international bidding where—
(a) the goods, works or non-consulting services are not available under competitive price and other conditions from at least three suppliers in the Republic; or
(b) regional or international participation is required in accordance with an agreement entered into by the Government.
(5) Participation in open international bidding shall be open to all bidders, including citizen bidders, local bidders and foreign bidders in partnership with citizen bidders or citizen suppliers.
(6) A foreign bidder who participates in open international bidding under subsection (5) shall partner with a citizen supplier or citizen bidder.
[...]
National and international selection
41. (1) Subject to subsection (2), a procuring entity shall use open national selection in the procurement of consulting services.
(2) A procuring entity shall use open international selection where—
(a) the consulting services are not available under competitive price and other conditions from at least three suppliers in the Republic; or
(b) regional or international participation is required in accordance with an agreement entered into by the Government.
(3) Participation in open national selection shall be limited to citizen bidders and in the absence of successful citizen bids, to local bidders.
(4) Participation in open international selection shall be open to all bidders, including citizen bidders, local bidders and foreign bidders.
(5) Where open international selection is used a bid notice shall, in addition to the requirements under section 17, be published in any regional or international media and on the website of the procuring entity and the website set up by the Authority.
(6) A foreign bidder who participates in open international selection under subsection (4) shall partner with a citizen bidder. [...]" (THE PUBLIC PROCUREMENT ACT, 2020)
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Previously
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"26. (1) Subject to subsection (2), a procuring entity shall use open national bidding for all procurement.
(2) A procuring entity shall use open international bidding where—
(a) the estimated value of the procurement exceeds the prescribed threshold;
(b) the goods, works or services are not available under competitive price and other conditions from at least three suppliers in Zambia; or
(c) regional or international participation is required in accordance with an agreement entered into by the Government.
(3) Participation in open national bidding shall be limited to citizen and local bidders.
(4) Participation in open international bidding shall be open to all bidders, including citizen, local and foreign bidders.
(5) Where open international bidding is used—
(a) a bid notice shall, in addition to the national media, be published in any regional or international media; and
(b) the period for submission of bids or pre-qualification applications shall be increased to allow sufficient time for foreign bidders to respond.
(6) A foreign bidder shall partner with a citizen or local supplier or bidder. [...]" (Public Procurement Act 2008)
Citizens Economic Empowerment Act, 2006 (No. 9 of 2006).
Citizens Economic Empowerment (Preferential Procurement) Regulations, 2011
THE PUBLIC PROCUREMENT ACT, 2020
Public Procurement Act 2008
[<a href="https://old.zambialii.org/zm/legislation/act/2006/9/cea2006284.pdf">Act</a>],[<a href="https://old.zambialii.org/node/12168">Reg</a>],[<a href="https://old.zambialii.org/zm/legislation/act/2020/no8-2020/public-procurement-act-no-8-2020.pdf">Act</a>],[<a href="https://commons.laws.africa/akn/zm/act/2008/12/media/publication/zm-act-2008-12-publication-document.pdf">Act</a>]