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Informing the legislative d~bato since 1914

Updated December 9, 2022
Trends in Mexican Opioid Trafficking and Implications for
U.S.-Mexico Security Cooperation

As a primary source of and transit country for illicit drugs
destined for the United States, Mexico is a key factor in
U.S. drug control policy. Included among the illicit drugs
produced in Mexico are heroin and fentanyl-substances
whose consumption is central to the epidemic of U.S.
opioid overdose deaths. As policymakers search for
solutions to the ongoing domestic opioid crisis, some
Member of Congress may seek to prioritize combating
opioids as an issue for U.S.-Mexico security cooperation.
U.S. Estimates of Mexican Opiurm Poppy
Cultivation and Heroin Production
Heroin is a highly addictive and internationally controlled
semi-synthetic opioid processed from morphine extracted
from certain types of opium poppy plants. Latin America
has featured as the main source of U.S.-consumed heroin in
recent decades. Although less than 10% of global opium
poppy cultivation occurs in Mexico, the majority of U.S.-
seized heroin originates in Mexico.
According to the U.S. Office of National Drug Control
Policy (ONDCP), Mexican opium poppy farmers cultivated
28,600 hectares in 2021 (up 23% compared with 2020),
resulting in an estimated 72 metric tons of potential pure
heroin (up 22% from 2020). In 2019, the most recent year
for which publicly available data are available, Mexican-
sourced heroin accounted for 92% of the total weight of
U.S.-seized heroin analyzed in the Drug Enforcement
Administration's (DEA's) Heroin Signature Program.

Figure 1. Opium Poppy Cultivation in Mexico

change from
previous year        0 37.8%
hectares under
cultivation
27.3%
64.7%
4s
54.;
4 8%          5       2
2412 2'13 2014 2415 2016 2417 2018 2C1 I'

%

2020 2021

Source: The Office of National Drug Control Policy Announces the
2021 Estimate of Poppy Cultivation and Potential Heroin Production
in Mexico, May 27, 2022.
Illicit Fentanyl Production and
Trafficking Trends
Fentanyl is a synthetic opioid significantly more potent than
heroin and approved for medical use as a painkiller and
anesthetic. Licit fentanyl may be diverted through theft and
fraudulent prescriptions. Fentanyl and fentanyl-like
substances (i.e., analogues) also can be produced
clandestinely. At present, most U.S.-destined illicit fentanyl
appears to be produced clandestinely in Mexico, using
chemical inputs (i.e., precursors) from the People's
Republic of China (PRC). India may also be a source of
precursors for fentanyl production in Mexico. Although
some fentanyl precursors are subject to international
controls, others may be produced and exported legally from
certain countries, such as China.
Mexican transnational criminal organizations (TCOs)-
particular the Sinaloa Cartel and Jalisco New Generation
Cartel (CJNG)-appear to be largely responsible for the
procurement of precursors from Asia (via maritime and air
ports of entry). TCOs also manufacture wholesale volumes
of low-purity illicit fentanyl in Mexico and control the
cross-border trafficking of fentanyl into the United States.
Domestically, U.S.-based TCO affiliates distribute illicit
fentanyl at the retail level.
According to the U.S. Commission on Combating Synthetic
Opioid Trafficking, Mexican TCO suppliers traffic illicit
fentanyl into the United States, primarily across the

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